Regardless of brand, inspect your desired trailer carefully for construction deficiencies. Thoroughly inspect the roof edges and any wall/roof penetrations: vents, exterior lights, doors, windows, etc. A long term water leak is probably the most common killer of travel trailers. Look at and test EVERYTHING during the PDI.
My cheapy travel trailer had areas that would have been guaranteed to leak and would have ruined it in a year or two. I searched out and sealed everything on the exterior. My toilet had a cross threaded connection which leaked a little, which was fixed under warranty. Mine is 12 years old and lives outside full time, and requires minimal maintenance. Aside from some sun fade, it's in great shape.
I think if you are aggressive initially, your chosen trailer can last a good long time.
