Have ridden many times from C470 to downtown. Seamless. Occasionally ice builds up on north side of bridges. (Shadow cast by bridge prevents melting.) Birdwatchers don't care for cyclists. Runners appreciate a heads-up from cyclists before passing.
It's a good trail. I went at 6:30 am and there was still a lot of other people. Mostly bikes. I found some dirt trails that stay along the river. I suggest doing the same to avoid bike traffic. I was the only person on the dirt trails so it was very pleasant and quiet.