I bought one in January and so far it's been almost completely trouble free. I had to have it because my wife had to have the floor plan of a certain unit. I was skeptical due to it being Keystone's entry level unit. I've been overall impressed with the quality and setup of it. Of course, it's no custom home with hardwood cabinets but is nice enough and a great value for the money IMO.
RVs (of any brand) at this price point are just such a roll of the dice. Any internet research will undoubtedly turn up horror stories but do keep in mind you are about 500X more likely to read of problems than happy consumers.
Considering I'm only 6 months in I can't give much of a longevity report but I'm certainly happy with my purchase so far.
A note on pricing - I got out paying 32K for an MSRP of 47K 5th. Granted, it was January and the dealer was super hungry but I just wanted to throw it out there if you are shopping.