This is my third season in my Specialized Eurolight and still love it. I have a fitting kit for two very different horses. It's very light and well built, I like that you can place the stirrup leather where you want and can adjust it to a changing horse through the season. It's not top quality leather, but it doesn't wear or break in any condition. I know lots of people doing serious endurance with that model.
I agree that customer service was poor and it took for ever to get the saddle. I'd suggest someone buy through a reseller rather than directly with the company to avoid the hassle.
You have to know a little about saddle fitting to do a good job or have someone knowledgeable around. You have to want to play with the fittings until the match is perfect.
My lightess saddle is a treeless Barefoot Cheyenne, if you're open to go treeless.