Chris makes a very valid point about the noise of FasTrack. I use FasTrack exclusively. The first thing I did on my plywood layout was cover it with a tight knit carpet, gluing it down. The sound deadening is adequate, but I operate my trains at slow speeds, mainly building trains, mu'ing diesels, backing into sidings, etc.
Thus far I have had no problems with FasTrack. I do hope it stays that way. The Command Control switches are the best thing since sliced bread.