You can get a good one, a total POS, or something in between, like any other brand made.
Some specific issues to look for with Rockwood.
1 - Fresh water tank supports. The tank has been known to sag, or pop out completely due to the weak supports. I had read awhile back they changed / revised the supports. The last ones I looked at at shows and on dealers lots over the last few months, still had the same weak supports that were on our 2015.
2 - Leaks at exterior lights and other wall mounted items including windows. They quit using butyl tape and use closed cell foam gaskets. They suck.
3 - Over tightened screws on Fender skirts and front lower skirts which cause them to crack eventually.
4- If you get the maxxair vent covers installed by the factory they'll install them during the build and mash them into the sealant around the vent while it's still green. Not a question of if they'll make the vent leak but when.
5- Rockwood warranty support is better than most. They'll actually send you parts or reimburse you for misc repairs as long as you document it correctly. They actually sent me new fender skirts long after the warranty was expired.
Too many geezers, self appointed moderators, experts, and disappearing posts for me. Enjoy. How many times can the same thing be rehashed over and over?