Hmmm... I don't know much about the brand name, but that's an awfully nice trailer for $2500. At that price it would be a STEAL. The price and "shipping available" part of the ad leaves me concerned that this may be a scam. Unless you have the opportunity to physically go yourself and check out the trailer, then pick it up when (not after) money is exchanged, I would steer clear. There seems to have been a rash of "trailer for sale" scams posted on the internet lately. Just my humble opinion...
This is what I've heard. Some from salemen at Horse shows selling that brand of trailers, Some hearsay. Take it with a grain of salt and see if it helps.
Royal T trailers area built in the Boise Idaho area. They are a spin off of a company that has been building semi truck trailers for many years. They have NOT been building horse trailers for twenty years. One of the sons of the owners of the semi business wanted to go off on his own and build a company. So with some support from his parents he started Royal T about 2 maybe 3 years ago. His company build horse trailers. But he claims to be using technics that have been proven in building big rig trailers for years.
In that same general area was Circle J and Classic trailers manufactures. Both of which have folded and closed their doors in the last year. The Royal T trailers look very much like the Classic trailers. It is almost as if he looked at both of the competing products and tried to incorporate their best features and designs. ( Just my assumption there). If it wasn't for the name on the trailer, the casual observer could easily mistake the Royal T for the Classic.
I have owned two Classic trailers and they held up very well. If the Royal T is build as well, It should be a great trailer. I serious doubt this trailer sells for $2500. That's an unrealistic price. So make sure you don't get scamed.
I saw these trailers at the Western States Horse Expo, I REALLY liked them. Not particularly this model, but their "dutchess" line I loved and would seriously consider buying after a little more research.