I started at the trail head in Cottage Grove. Paid my $5 and took off east. The path is mostly crushed lime stone and nice riding. It has slight grades but no hills. The trail is mostly straight and flat which is why I say it lacks features. Yes I know it is a converted train tracks. Lots of farms and fields with flowers. (features?) Also tree lined. It goes by many small towns along the way but they looked deserted. Didn't see many people.
I think riding the IPP and Fox River trail is better.

We absolutely loved this trail. We started near the airport in Watertown Wisconsin and took the back roads all the way to the end of the marked trail. There’s a small 2 mile segment that’s a long state route 16 but it’s a dedicated trail on the side of that road. Loud traffic but just a small section so not that bad of a deal. Everything else is beautiful country roads very little traffic absolutely wonderful rolling Hhills and farmland. It took us three hours round-trip very leisurely pace of 9 mph Be sure to eat at the Main Street diner in Watertown

The Menominee Parkway section is horrible! So many potholes! I popped my tire and had to get an Uber back. My first ever experience with an Uber, which was much better than my bicycling experience!

Pros: fast way to get north-south or vice versa, mostly clean gravel.
Cons:Many streets to cross, if you don't keep your head on a swivel and you stop, you have a great chance of being mugged.

good for walking, great for biking.

This trail is very scenic as we biked north from the Ozaukee trail. We immediately could tell the difference as this trail had a more wooded or nature feel. We stopped and turned back at the trail’s end just short of Oostburg rather than following the quiet roads the short distance into the village. We wish the trail continued further into Sheboygan County without the reliance on county highways. It’s a great start!

We did the northern leg the second day, parking at the DOT park & ride lot at the I43 northern exit. The scenery is mostly farmland with flat terrain. There are areas with potholes which may be marked with painted circles. It is a great exercise trail as the lack of curves and people walking the trail allowed us to bike faster than normal. We continued further on the Sheboygan County trail at the north end before returning to Port Washington.

This is a very nice trail, well maintained and well marked when you’re biking quiet streets in the various communities. We stopped in Port Washington at a lakeside park for a break before returning to Mequon.

Nice ride from sheboygan to Greenbush it is a little bumpy but I don't think there are many traits that are without these problems. Lots of hill's and curves