My wife and I think it is a great boat. We have one of the few tall rig
versions so it performs a little better in light air compared to the standard rig
. The P10M is a tad shorter LOA and Beam, and a little longer WL (Compared to the P34), making it a slightly faster boat. The P10M was designed as a club racer/cruiser. Traveler is in the cockpit on bridge deck, which is both good and bad. Good for controls right at helm, bad as it gets in the way going below deck during sailing.
Cockpit is about 10 inches shorter than P34 and the headroom is about a inch shorter, but even I, at 6' 6", I fit until mid salon, then I have to duck a little towards v-berth. The P10M has less "wood" below and a little less room, but the boat sails great and is a real pleasure to sail.
Seeing as I got mine for about $10 to 15K less for basically the same boat as the P34, albeit 4 to 5 years older, I think a 10M is a great buy.