What is it you're buying? 2109?
Might go to the top of the page, in the gold bar and try the search feature for whichever model it is you are thinking about. There are a number of threads on quality overall with various models. A simple internet search using your make, model and "quality" will probably bring up more than you can read in one day.
If this is a used unit, try one of the various search engines for VIN numbers to give you some background on that one.
Pull up a ready made check list for inspecting an RV and use it to go ever that unit prior to buying. Just search RV PDI. There are a number of premade lists.
2018 Jayco Greyhawk 29MVP
2019 Jeep Sahara Unlimited
2011 Cyclone 3010 Toy Hauler- Sold
2014 Chevy Silverado Duramax LML -Sold