I have a 2008 Hart trailer with living quarters. It is really made and probably the best pulling trailer I have owned yet (this is my fifth trailer). This is my second Hart and I would buy another.It does have lot of "little" touches that I like- padding above the horse door so if a horse were to throw its head loading or unloading it would not get hurt, running lights on the fenders, stuff like that.
I have one. I looked at every single trailer available and they make the best quality. Hands down. They are, however, quite expensive...I guess you get what you pay for. It's a boutique type of manufacturer, so you won't find a ton of them.