Smooth & Quiet
This is the first trainer I've used, but I'm really pleased with the CycleOps Fluid 2. It's a smooth ride and feels pretty natural. While it is of course not silent, it is much quieter than my friend's rollers which I've tried. (That said, I'm sure higher end rollers are more quiet.) There seems to be a fair amount of resistance, but I can compare that only to the road. For the same amount of effort, I can go much faster on flat road than I can on this trainer. For those who say it's hard to motivate, I suggest I heart rate monitor, and give yourself some intervals to help the time go by faster. This trainer seems really well made, and is stable.