That is a sweet rig. I sometimes carry a 5906 in a Galco Combat Master holster, but because of the lack of retention, it's usually concealed. My EDC is typically a G19 Gen4 in a Safariland 7377 ALS holster.
I like the 5906 because it primarily stainless steel. Strip, Dawn, hot water, good scrub, 130 degree oven for half hour, let cool, lube, de-strip and its good and clean. Besides I sweat like a faucet in summer and got it for S. Georgia summers. I was there July last year, and no day was below 90 and most were above 95 with a fair number broke 3 digits. That was a bit warm at times.
Went with the Alien Gear based on recommendations from friends and loaned usage. It just works for me. Fit, comfort and cost are all great.