There's only a handful of large corporations who build travel trailers under several different names, sometimes on the same production line, with the same people. That is why you'll see multiple brand names with same floor plans. Flagstaff and Rockwood for example, the only difference between the two are decals, exterior color, and interior colors.
When it comes to the appliances, electronics, frames and undercarriage, there are even fewer companies building those, for everybody.
Over the years, I've owned five different brands. They all had issues here and there, only one went in for warranty work. If I had the tools to remove and replace a slide out, that one probably would not have gone in either. Seven years later, I still have it.
When these things get dragged down our bad roads, at 65+ MPH, things are going to come apart. Screws and plumbing fittings will come loose and caulking beads will crack, doesn't matter who put it together.