@Outbound I find it very comfortable, though after almost 100 dives it's starting to show some signs of wear. A few threads have come loose, though the seams are still firmly glued together. I started using a bp/w with a crotch strap shortly after I bought it, and after a few months I noticed the outer layer of the suit was getting rubbed away where the edges of the crotch strap touched my inner thighs. I'd been looking into my options for pockets anyway, and that nudged me towards getting the Apeks tech shorts. I've been wearing the shorts over the wetsuit now for about as many dives as I did in the wetsuit before I got them, and they seem to have stopped the problem from getting worse (and the shorts themselves are not showing signs of wear.)
Recently I noticed the suit has pulled apart at the lower back, just below the zipper. There isn't a hole, just an area a little more than a square inch where the fabric is paper-thin. I suspect now that the suit was never actually a perfect fit for me; I was just able to make it work because it's so stretchy. I'm a 12 in every other brand of wetsuit I've tried on, but the Henderson 12 was too big in the armpits and around the middle; I could blow my hair up with little puffs of air coming out the neck by flapping my arms. I tried on the 10, but it was too short, and also still a little big around the middle and armpits. They had a 10 Tall, which seemed to fit, and it's been working for me all this time. But I might have cut down the life of the suit by constantly stressing it to fit a shape it wasn't made for. (I would describe myself as something between a pear and an hourglass; women's Henderson suits seem to be cut for the apple or upside-down triangle shapes.)
I'm trying to be as specific as possible because I really don't know what's normal; this is the only scuba wetsuit I've owned and it's seen more action by a factor of 10 than either of the surfing/snorkeling wetsuits I owned when I was younger. I bought this suit because I wanted one that was easy to get into and out of, knowing that might come at a cost of warmth and durability, and it delivered. I'm looking into a repair shop in Torrance; maybe they can breathe some more life into it. I'm also getting a drysuit, though I don't think I'll dive dry exclusively.
All things considered, I'd still buy another Henderson, though maybe if I were buying one made from more expensive materials, I'd look into a custom fit. One nice thing about the Thermaxx was that it only cost about half as much as the Aquaflex I'd been eyeing. I'd heard that after about 2 years/ 200 dives, you can expect to have to replace a wetsuit (or relegate it to summer use) anyway due to compression, so I feel like getting a solid year/100 dives is pretty good. And maybe if the next one has a little more room in the trunk, it'll go the distance.