I had an A/P model for awhile. I thought the quality was quite nice and it fit my TB like it was made for him -- my saddle fitter said that he didn't see that many that fit right out of the box that well.
I had a dressage saddle quite a while back. Used it for about a year and a half, but then my horse matured and I needed a wider tree.
I liked the seat. Saddle was well-balanced and seat somewhat shallow (or so it seemed to me compared to my old County!) so you don't have that "locked in place" feeling, so I was pretty happy with it at the time.
it's not the edge of the earth, but you can see it from here
Most, if I'm not mistaken, are custom made. So it can be hard to find one that fits 'right out of the box' for a horse it wasn't made for.
The leather is usually excellent. Craftsmanship is lovely.
Seats are more like old Passiers and Stubbens and Courbettes--that hard, shiny, slick deal that a lot of folks today don't like. Most of the seats are of the shallower variety, but again, I think he only (?) did custom saddles, so of course, some are deeper.
All the ones I have known have had a waist that tends toward wider. Not as wide as say the old Albions, but not as narrow as many.
I always keep my eye on them when I see them for sale. He had (has? still making?) a knack for fitting the wide back with withers. All that I have sat in, without fail, have had lovely balance for the rider, even with minimal thigh blocks/knee rolls and more shallow, open seats.