First off let me say that I fell in love with this gun the first time I had it in my hand. I had been eyeballin' the XD for some time and actually wavered for some time between the XD and the XDm. The extra capacity (16 vs 12), lighter dry weight (28oz vs 29 oz) and comparable height (5.6" vs 5.5") convinced me to go with the "match grade" over the standard.
Ergonomically the grip fits my hand very well. I prefer the small back strap (it comes with 3), and it feels like an extension of my hand on the draw providing a natural sight picture.
I was very impressed with the accuracy. I held 6" groupings at the range at impact with the target out as far as it goes (not sure the distance, but I'll find out).
It shot very well, eating up everything I ran through it. 300+ rounds (200 cheap walmart ammo, 100 reloads, and 15 rounds of Federal hydra shok personal defense) Not one failure to feed, or hiccup for that matter.
Notable features: expanded capacity, grip safety and trigger safety, chambered round indicator, striker indicator, kicks butt.