I've offered this advice many many times, and will offer it here again:
CONDITION is far more important than brand reputation or any "known issues" with an older camper from a defunct manufacturer.
If the camper is 10, 15, 20 years old, is in good shape, leak-free, and everything works, it doesn't matter if it's from the best brand ever or the worst brand ever. It's made it this far. How bad could it possibly be?
Aluminum framing is no guarantee that the camper won't leak, and if it does leak you will still have problems with mold and rot. You need to keep up on the maintenance.