My roomate has a three horse slant gooseneck (XT300). It is nice, but its one of the "older" (2002) models. The new ones have dropped significantly in quality. Exiss (and Featherlite) is now one of a group of brands all owned by the same parent company (Universal Trailers). While Featherlite is still semi-independant, the Exiss model has fallen to the "budget" catagory; the bottom rung of three different trailer brands. The previous models were very nice, on par with some of the very expensive names like Sundowner. Some of the features are just "duh" simple and breakproof. The new ones tend to skimp. I looked carefully at my friend's Exiss, the new Exiss's, and Featherlite, and went with a Featherlite trailer because the construction looked and felt superior, as well as the features. I did definately like some of the hardware of the Exiss better than the Featherlite hardware, but overall I felt the Featherlite to be a better trailer than the NEW Exiss models. The older ones seem on par, quality-wise.
There are a LOT of complaints out there about the falling quality of Universal trailers... I'm sure Featherlite will fall in the future, but right now it seems a very well built trailer.