Most trailers, especially in the range you are looking at, are built as cheaply and as quickly as possible. Therefore there will be some issues. Most parts are built by third party suppliers - frames, slides, refrigerators, AC's, etc. And there are very few for each part - so all brands tend to have little to choose from as to what they build with. The brands are just assemblers, for the most part. For my Fifth wheel, 4 years ago, I chose Jayco, primarily because of the 2 year warranty. Almost no additional rework needed to be done.
When damage caused me to replace it, I went with Grand Design. There have been a few items for warranty, but the impressive part are the stories from almost all buyers about how they bend over backwards to fix any problems that do crop up. Granted, there shouldn't be problems, but they really stand behind their product.
The very most important is the dealer you buy from. Search Facebook for groups associated with the brands you are looking at, and ask questions about the dealers you are thinking about. Some brands will only authorize work from one of their dealers, others (like Grand Design) will work with almost any repair place, if your original dealer does not make you happy. Interesting that the only dealer Grand Design won't work with is Camping World....
