In my experience and my opinion, the P7 is quite possibly the perfect carry piece. I’ve owned both the M8 and the PSP. Since my return to law enforcement I’ve decided to go all SIG, but I do miss my M8 and I’m getting the itch again for one, a new one.
But having said that may I make a suggestion on a single stack SIG for CCW.
Look into the P239 it comes in 9mm.
The can be had w/o nite sites for around $450 to $500 NIB in the south.
I own both a 9mm and a 40/357 version and I carry the 357SIG.
The P225 have one of the best grips on a gun I’ve felt, it’s about the same size as the P228 just thinner, so depending on your size…
If I had to pick out of your two choices I’d pick the P7.
As for the P7 breaking head over to HK Pro
http://hkpro.com and ask for more particulars on P7 breakages and I assure you, you will be pleasantly surprised, despite those among us who have single handedly witnessed every gun this side of Sunday break, jam and KaBoom, they are made well.
Just pick one up and compare it to a Glock, 1911 or even a SIG for that matter.