Sold mine a few weeks back. Fell in love with HK's
Been wanting to try a M&P though.
If you do get an M&P, make sure it's a more recent one. I had one that was I guess a bit older and it had BAD PROBLEMS!
It was a M&P40c, the first day it was great! After that though it would drop at least half a foot from point of aim. My dad will say the same thing.
Now the Shield, that's a great pistol. Just got one in .40S&W and it's a blast!
The only M&P I'm really considering is the 40L C.O.R.E. model. I like that a lot!
I've though about the FDE 45 models, both full-size and compact.