I set up my Bike Friday on a Kurt Kinetic trainer. It is the only one I found that has an adapter for a small wheel. I would agree that just sitting on it and spinning would be boring. However, I have bought several DVD's from Bike O Vision. It has a silly name, but very cool video of riding down the road to music - in such places like CA Coast, Southwest, National Parks, etc. No one is yelling at you or telling you what to do like a spin class.

I just get up and do intervals on it every morning for 20 minutes before breakfast. That is supposed to speed up your metabolism for the whole day. Once you schedule something in like that as a regular thing, you just do it. If I had to think about whether I wanted to or when I wanted to do it, I probably would not do it very much. Likewise, if I thought I needed to do it for an hour. So, my trainer gets used almost eery day. It has increased my riding speed.

One thing a trainer does is wear out your rear tire faster, so it is easier if you put a spare bike on the trainer (if you have one) rather than your road bike. Then you can just continue to ride on the worn out tire. I just bought a new rear tire for my Friday to put on for the next trip, but I'll put the worn out one back on the trainer when I return.