We have the Stages bike at the Lifetime Fitness. In general, most of the bikes work but some do not. They seem to need a lot of maintenance.
If I were going to get a stationary bike, my concern would be reliability of the electronics. Of course, one could say the same thing about smart trainers. Although, the Stages bike seems to have more trouble with the screen. Many times unplugging the Stages bike and reconnecting fixes the problem. But it is a pain in the ass.
And there is bike fit. At least when I put my road or TT bike on the trainer, the fit is perfect.