Sorry, gotta chime in here.
FWIW - My 1989 PC800 was my 2nd bike, after my 1978 CB750 (still got em both), and I've had a Concours and now an FJR after the pC. Did many 12 hour days on the pC800, as well as hangin with the sport guys in the NC mtns as I used to ride with Concours and Guzzi owners. Its only rated 50hp, but there was a time when that was plenty as it will still easily pass the ton, and the twin torque at low RPM, and very very low Center of Gravity makes this squat little machine quite flickable. Plus, most of us ain't going 100mph on the Dragon, so the PC will hold the twisties at 55 just like everyone else.
And slow speed maneuvers (finesse vs eyeball flattening speed) are so easy, someone on a PC would almost always win any ride contests at rallys I used to go to back in the day. And you can pack a lot of stuff (a LOT of stuff), travel 2 up very comfortably (no bigger stock pillion seat out there). Got mine when I was about 26 or so, and my wife and I both loved it.
Supplanted it with the Concours C10, and while much more HP, the smaller cockpit and top heaviness of the concours didn't have it outpacing the PC800 by much as far as practicality was concerned.
I did all the maintenance on that bike myself, including replacing the stator when it died, a new wiring harness (some ground fault problem) and new rear shocks, so its not too hard to work on. Got to where I could have her naked in about 20 minutes. I find the mechanical aspects of the FJR much more daunting.
All in all, we put about 64,000 miles on it in about 5 years and enjoyed every mile, which is why I still have it and love to fire it up every once in a while to hear that soft "burble" of the engine.
My rides have always been my rides, not a substitute for any lack of penis, so I've rarely been concerned with form over function. The PC is a fun, torquey, easy to handle, ahead-of-its-time machine, even if top-end speed does feel a little neutered compared to modern sport tourers. But that's why I have more than one bike, and save my need for speed for track days.
And I've mentioned this somewhere here before, coming off the Concours to the 2007 FJR - the FJR ride actually reminds me quite a lot of the PC (heresy!) and is why I bought it. Compared to the Concours, the FJR quieter, smoother, has a lower COG, and the covered tiller-like handlebars all remind me of a modernized PC.
I'd be interested in hearing from any other previous PC owners who now ride FJR's