To Mike from Mike about mic(roprene),{sorry I couldn't resist},
I have a Henderson microprene suit, which I wore on a recent (Aug.'01) trip to Cozumel. I very much liked the fit and feel.I was doing 4 dives a day (water temp 80-87 deg. F), and I was completely satisfiedwith the suit's performance. On/off was easy, even when wet, and the suit was very comfortable. In the admittedly warm water,there was no chill at all-even on the forth dive of the day. In fact, on occasion I would pull the neck seal away to let in some water-and I am a non-roster member of the CAD group.
One minor concern :the velcro waist band from my BC did cause some abrading to the stitching on the thigh of the suit, but it does not appear to have caused a problem in terms of the suits integrity. [ I think the fault was mine "or the BC's", rather than a design problem in the suit.]
Finally, fit is important, especially regarding the neck seal. It is a 1 " wide wrap-around seal, and as the zipper goes all the way to the top of the suit's neck, you could encounter a leak if the seal has to be pulled tight to the extent that the zipper top gets folded over. Keeping the neck seal snug is critical to maximizing this thin a suits "thermal protection".
(BTW, Henderson's sizing charts are not very accurate, either. I would suggest going with the smallest size that you feel you fit, or be sure to get an option to return/resize the suit.)
Good luck with your purchase, and let us know how it turns out,
Miked