I have one! I love it. I only paid $560 (shipping included) for it brand new. In fact, it was made to my order. The fenders and jockeys are very soft and flexible. The whole saddle is fantastic quality for that price. From what I could tell, they aren't super well known, so I imagine finding a used 15" barrel saddle would be difficult because it's pretty specific.
The seat isn't super secure like a lot of barrel saddles. It's one of the flatter ones I've seen/sat it, but I like it. I was on a budget when saddle shopping and got the recommendation from Smrobs, who uses Corriente saddles, and I trusted her opinion. Also, they only make 7" gullets, so you need a wide horse for it to fit.
I can also tell you that they have fantastic customer service and are very friendly, so if you have any specific questions, call them and ask.