John,
I don't personally have them but I have sat in them and liked them alot.
For everyone:
The Arizen has a slider that sits the seat as low as possible which looks better for those with a 69 Camaro 'vert (Mine

), having sat in the seat, the side bolsters were a little tight for me, I'm 6'1" 200 and even though they weren't to small, I wanted more room. Arizen then came out with a version 1" wider and they are also coming out with a shorter side bolster in a month or so. Here are the seats without the shoulder strap option:
http://www.pro-touring.com/forum/sho...t=22344&page=2
Last but not least, the price. For BOTH seats with heaters and leather with mounts they are about a grand depending on what options you want.
Seat are a very subjective thing, but at least this is a quality option at a good price...a friend of mine that has them for a year now highly recommends them and he long hauled the Power Tour in them.
Hope this helps,
Matt