I've got 2 XD 9s and a XD-45 and really like them. They are very simple to operate and service. Also very reliable. I've had to have the springs in a couple of my 45acp hicap mags replaced, but Springfield's lifetime warranty covered it.
One of the 9s is my carry piece, but only because I still shoot it better than the 45. I keep working my skills with the 45 because I would really like it to be my winter carry weapon.
The new XD-M looks like a 40SW on a modified 45acp frame with a 4.5" barrel (maybe that's why it has more capacity and need new mags). Good concept for a LEO service weapon, especially since they should have a manual thumb safety available for those that insist.
If you don't like the trigger, there are a couple of places that specialize in XD trigger jobs. I've had all three of mine done.