loved the trail only the Far East end hard to navigate

Great trail with diverse features from Mt biking in Pisgah Forest to urban trail in Brevard. Oskar Blues Brewery side trip a highlight!

My wife and I rode our tandem from the parking area off Lakehurst St up to Travelers Rest (TR) on a sunny Thursday morning. Being a weekday, there were no crowds to contend with. The trail is well kept and a pleasure to ride. Yes, the trail is a little hard to follow in the downtown area due to the many intersections with park paths - the signage still needs improvement. A map of the downtown section was helpful for us, since we were new to the trail. There is one place downtown where you will need to ride on Furman College Way (street) because the actual trail goes up steps. It's about 0.2 mile long.
As you head towards TR the trail takes a "jog" at Willard St. There are tight turns on either end of a small bridge over the Reedy River.
There are two other road crossings that require extra caution due to high traffic (and no traffic lights) - West Blue Ridge Dr ( Rt-235) and Watkins Bridge Rd.
There are many places to take a break or grab a bite in TR. The ride from Greenville to TR is a gentle uphill grade. The trail itself goes another 2.2 miles north of Center St. This section is a little hillier.
Overall, a good trail to ride on.

As others have said, it isn't much of a "trail" but rather a paved path that runs along a pretty busy two lane road. You can walk two abreast but that is about all. There are multiple subdivisions along the path which contributes to the busyness of the road especially during morning and evening rush hour times. That being said, it is a nice place to get in a few good walking/running miles with some hills along the way without having to drive a long distance out of town.

This is in a nice area.
The trail is paved. Mostly level, has a couple small hills.

However, I found it difficult to get a good run going.
The trail is marked but still a little confusing. Some due to construction, some due to arrows on path the took the trail to a sidewalk? Another runner confused at same spot.
I asked a local who did give me advice on what way to go, which helped or I would have been even more confused on which way to go.

This should not deter you if in the area and want to get some miles in.

It would be nice if you could just find an address for the start point so you could just put it in your gps. The trail is paved and flat. It’s also pretty narrow and usually busy. The trail is nice for walking, but it’s kind of tight for riding bikes.

Today was my first time riding the Swamp Rabbit (used the recumbent trike). I parked near the Zoo off of Lakehurst, lot had a lot of trees for use about all day shade. Used the parks paved trail and the signs to connect with the SR. Agree with other reviews that the signage in town might be a little confusing, the Trail is mixed in with the park's paths, but you'll want to see the sights here anyway - use the map or an app, and the way becomes clear. The connector to the lower part of the Trail will require some map reading or familiarity with G-ville.
Love the places where Greenville Spinners (local bike club) have marked the trail, and the markers for parking, restrooms, etc.
Trail was well kept, very wide in places and everyone using it respected lanes, passing, etc. It was well used by walkers, runners, bikers, saw roller-blades and a Razor scooter, but it never felt crowded. Good sight lines, no blind corners on the main Trail up to Travelers Rest. Grades were easy. Lots of shady trees. Anyone could ride this trail.
There are plenty of places to stop and rest, use the facilities, stock back up.
Like a lot of rail/trails you don't want to let a tire wander off the path. In the downtown park area you will be sharing the paths with everyone and anything - usual "pay attention" applies.

If you want to introduce someone to a rail/trail - this is a great one.

Drive two hours from northeast Georgia to give this trail a try this morning. Parked in the Pickens Depot parking area even though it isn’t officially open yet. A nice Pickens official happened to be there and gave me the thumbs up to park otherwise the overflow parking was just behind the depot. Throughly enjoyed the ride to Easley. There are some sustained railroad grades that will get your heart pumping so a cardio workout should be expected. I loved every minute of the ride and plan to go back with my wife over Memorial Day weekend another cities have done a wonderful job with their parks. Great job.

I rode the trail for the first time yesterday. The other reviews are very accurate
Positives
1. the trail has no big hills, so it is very nice.
2. it goes right through downtown Greenville so you get to go right next to the falls.
3. once you get a mile or two north of Greenville it is very scenic and rural, very relaxing.
4. the trail is well maintained. grass along the side is cut nicely.
5. It goes by Furman, i had never visited Furman.

Negatives
1. The signage through downtown Greenville is terrible. Some people were critical of the train through town. I think of it the other way. It is really not a trail through downtown. SOmeone figured a way to get from the the zoo south of town to the trail north of town and i give them credit. YOu can't go fast, there are some tough corners, you have to watch out for pedestrians because some is on a sidewalk. But that's great they could figure it out. But i got lost twice trying to get through. Signs are needed telling you where to go.
2. The path is bumpy. There are a lot of tree root bumps in the trail. It is not terrible yet but will be in a year or two.
3. Someone complained there are a lot of road to cross. There are but they are all ok, except one. There is a 4 lane highway to cross with a small median. No stop light. SOmeone is going to get killed or hurt bad there, the cars are going 55+ and were pretty steady when i crossed. I know it's a big expense but i hope it's on the list of 'wants'.

There were a few businesses along the way. One bar if you wanted a beer just north of Greenville. And a few things in Travelers Rest. There were some other reviews that said there were a lot of businesses on the trail, not so.

I am from Atlanta, it was nice to bring my bike up and use the trail. Thank you to the people of Greenville for having the foresight to building this nice trail.