They're very high quality rigs. My Sparks is a summer special for my Ruger P guns and my Rosen is a Workman tuckable for the Kel Tec P11. I also have a Law Concealment Systems IWB pouch for small revolvers and autos that's comfortable and works pretty well. The advantage in that one is that it's generic. They offer 4 sizes I think. Mine's the small one and I even use it for a pocket holster.
I've also had excellent experiences with Milt Sparks. If you don't want do deal with the long wait time from them direct, here's a company that is an authorized distributer from them. Yes, the prices are higher but its in stock. I've dealt with them and also had excellent service. For example, I've received email replies at 8:00 at night in regards to whats in stock.