HOST , LANCE , slide-outs fiberglass skin fatigue.

I've seen WAY too many problems with slides of all types to want one again. Had one once on a high end class A. I can't say they are more problematic than many other things on a typical RV, but that is a very low bar to clear. If you want the space, and you are willing to put up with the problems, then you are like 80% of the Rv buyers out there. Which is why they continue to offer them. But calling them generally problem free is a fantasy.