As far as I know there are no independent rating organizations that rate travel trailers like Consumer Reports rates automobiles. On iRV2.com travel trailer owners weighted in on their present and past TT's. Dutchman along with many other Thor brands were specifically not recommended. However, all the recommended brands cost a lot more. Second hand Thor brand TT's frequently have had expensive quality issues corrected and may be a better buy than new. Be prepared to perform all recommended maintenance to minimize repair costs.
In my opinion, Initial price is good. Cost of ownership is bad.