I have had the Air Hawk for a 4 years on my Roadster and 11 years on my Bonneville, love both of them but the trick is not to have too much air in them, you will surprised how little air is needed to make them comfortable. On the Roadster I have the a Air Hawk forward so my tail bone is right on the rear edge of the cushion and works fine.
So after much debate I have decided to go with a gel pad (Astroglide filled) covered in fine Corinthian goatskin. I'll just leave all the hot air here in the forum. Cheers!
I just rode about 1500 miles on an Airhawk Cruiser R small on my BMW. It's not too bad, but not too good either. My wife loves hers though.
I much preferred the Saddlemen gel seat pad I used for the other 2000 miles of that trip