MichaelS, I'm just not a glock fan. They don't fit me at all and while I'm efficient with the one I carry on duty. I don't think I'd like to own one of my own.
I carry Appendix IWB almost exclusively, and I'm a big fan of the Alpha Concealment Apollo style.
If you want something close in quality for quite a bit less money, the Clinger Atom is also a good choice.
I would recommend Tulster as well, but he doesn't make one for the M&P 45. If you have anything that he does make a holster for, I HIGHLY recommend his Profile holsters.