I've been wearing my Crossbreed with a 4" XD.40 for about 8 months now. For me it is the most comfortable IWB I've ever tried.
It must be good. There seems to be a lot of copies out here. Soon after I got mine, Galco came out with their copy and lately I've seen another one on the market, although I can't remember the brand right now.
I got mine with the metal belt clips. If not careful, you can chew up a belt in a hurry donning and removing the holster every day. I think I'll look into the plastic clips Crossbreed offers.
I think you'll be happy with your choice.