I agree about getting a StarMarked car. These cars are pretty reliable, and suprisingly, not difficult to fix...
...but when you get around to ordering parts...YEOWCH!
See my thread about the cost of replacing that gauge cluster facia...
The only thing I found of concern from reading threads in this forum is soft and hardtop operation. Needless to say, it's a complicated system, so I would guess that's where problems would begin if they ever do. SO make sure you put the prospective purchase through its paces with both tops.