I have had mine for two years now and am satisfied with it for the price. I have had some issues with mine but nowhere near what 93mastercraft did and I have not seen anyone else with that many issues either. There are things that I wish were done differently that I have changed and am still changing but it works. I don't want to kill anyone here with all the boring details but if you want to send me a PM I could discuss it with you at length. I did just look at at Thor's website and it looks like they have made some improvements over mine.
You might want to look at Forest River and compare build quality.