...Actually two of them.
Unbenownst to me, it turns out a close family member has a bunch of H&K pistols and he brought them to the range yesterday for our range session with my VP9 for me to have a go. Among the set of guns he brought (which included a USP 45 and a USP 9mm Compact) was his single and double stack P7s (P7M8 and P7M13, if I have the nomenclature right.)
First time ever shooting one of these; actually I'd never seen one before, so it was pretty cool.
I'm not sure I liked the squeeze cocker aspect of the grip, but boy it was accurate. I gather the barrel is fixed to the frame, and recoil is managed by the blow-back system.
(It did get a little hot, even after just a couple magazines. )
Gun felt heavy (duh) and the trigger was very crisp and light, compared to my M&P/VP9.
It was a pretty interesting experience for me, being new to guns and all that.