The RC greenway is in my neighborhood and I'm just tickled pink! Aside from the recreational aspect, it provides residents with easy access to shopping and dining, as well as Nashville State Community College and Tennessee Technology Center. One thing I especially love about the RC trail is it runs right next to the Villa Maria retirement home. I have seen several older folks meandering down the trail, even one senior cruising along in his motorized wheelchair with a fishing pole attached to the back. Go, dude!!
At the Wyoming trailhead sign is posted a warning about agressive dogs in the area. There were several attacks that happened back in 2009 but as far as I can tell there hasn't been one in the past few years. To err on the side of caution I would suggest carrying pepper spray, but I think that applies to any forray into nature.
Check out the display at Dutchman's Curve, site of the worst rail disaster in American history. If you walk past the sign and follow the path to the right, a few short steps will take you to the creek. This is where the photos of graffiti were taken. I saw a great blue heron fishing here.
On another point where the trail crosses RC there was a flock of hundreds of robins bathing in shallow rocky pools, tussling in flight, foraging on shore and generally being wonderful to observe and listen to. I suppose they are migrating to warmer climes. I also saw a kingfisher flying his very noisy way along the creek like it was his/her own personal trail.
I'm giving the RC trail 4/5 stars because it's really busy. Constantly dodging walkers, joggers, strollers, and other bikers was a drag. But I'm the kind of person who prefers a solitary experience when I'm riding and I know where to go to get that.

We rode this trail from Murphy Road over to the Villa Maria retirement complex and back. It passes by the golf course and goes beside the creek where we saw a blue heron. Trail is not crowded, but also not totally deserted, which is the way we like it. Well maintained bridges and path.