I have a specialized eurolight saddle.
I found the customer service very poor with the company.
I find the seat uncomfortable.
It's very light weight, which is fabulous. It has tons of D-Rings. I think the leather looks cheap, but it seems to wear well, after about 100 miles in the saddle. I think it would probably hold up well to endurance riding, and since it's not too "fancy," I wouldn't mind riding it in bad weather or through water.
I like that the stirrup position is adjustable. I wish the girth position was adjustable.
I was having trouble getting a really good fit with the pads. I called the owner, and he said I was "close enough, and the pads will squish down and mold to my horses back." I did a few training rides, two 18 mile rides, and a 25 mile LD. My horse now has LARGE white hairs on his withers and back on both sides. There were never any dry spots under the saddle and he never palpated sore after rides. Needless to say, I don't use the saddle anymore. It didn't work for me.