Howdy! I've got a Pearson 23 Sloop down here on Galveston Bay in Texas. I know of two other local ones as well.
Fire away with the questions!
In the meantime...
I'm assuming you're talking about the one listed in Marion. Appears to be hull #30 (based on sail number) but I don't know what type of keel is on it. There were a few options, mine is fin keeled. It was either built in Rhode Island or down here in League City, Texas.
Overall construction is pretty good. I've learned that Pearson generally made good boats, and although this was a late entry into the trailer-sailor craze of the 70's, it wasn't/isn't a shabby boat. Solid fiberglass hull, balsa cored deck.
The interior lacks headroom, and I wouldn't want more than a couple (maybe with small child) aboard for a weekend, but that all depends on how much you like camping. Same game as most similarly sized boats.
Under the berths should be integrated tubs that hold all sorts of gear, and there's plenty more storage under the v-berth up front. If you took the tubs out, you could stuff a lot more in there too.
My boat (Hull #10) doesn't have the mini-galley option, just companionway stairs, so I can't comment on function of that.
The cockpit is an excellent size for day sailing, plenty of room for 4 adults to sit, laid back. Over 6' long! The traveler set up is good too, in the forward cockpit area, stretching across the whole cockpit. The companionway is elevated, keeping water out of the cabin if you take some on. There's a handy compartment in the cockpit for a 3 gallon gas tank that keeps it out of your way. Plenty of storage in the sail locker as well.
The single lifeline seems to be a bit high, and there's no gate, so you're either ducking under it or high-stepping over to climb aboard.
A very solid boat on the water. Heavier than others in the same class (at 3500lbs), and doesn't carry as much sail area as some, but this thing is no slouch. Ballast (Fin Keel) is 1300lbs of lead down low really helping keep the boat very stable and forgiving. Likes to sail at 10-15deg and when winds have picked up to 15 gusting 20+, the rail never touched the water under full main and 100% jib. I would recommend reefing by the time the wind gets here though, as gusts exceeding 20 will bring on the weather helm. At 15 steady, the 100% jib and one reef in the main will have you back on track.
Under motor whilst in the kind of heavy chop we get around here in the bay, she'll hobby horse a bit, but once you raise the sails, she tightens up almost immediately, and pushes forward.
The shrouds are kinda outboard, so you can't sheet in real tight, but the boat points reasonably well. Upwind is straight forward and this boat doesn't get scary. It just cruises along, riding up and down the chop and swells as if on a picnic. Downwind is uneventful and if you've got an asymmetrical kite, it makes for a very fun ride. I've experienced no crazy rolling motion or uncomfortable ride - I single hand most of the time (hank on jib and all).
The rudder is outboard and is very responsive. This thing can turn on a dime.
At 20' of waterline, hull speed is right around 6kn and doesn't take much effort to attain and hold on to.
All in all, I think (beware of an owner's bias) this is an excellent boat in the 22-24' range. A great balance for all around performance and cruising fun. I've had experienced sailors aboard who have much larger vessels, and they all like the boat.
Pearson also made a catboat version of the 23, which you'll probably find more info on. I have various info that came with the ships papers, but on the net, it's a small fish in a big pond.
I have a video on YouTube, that although doesn't cover all the bases, it gives you an idea of what it looks like from the cockpit.