I've been in the owner's club for about 29 days now. I ended up with L3 towers, center, and surrounds. No proper sub yet--I'm making do with a mismatched sub from another system, but it still sounds good. I am pretty happy with the HTD stuff so far, though this is easily the best stuff I have yet owned and so I am probably not as discriminating as many other AVSers.
I did have one problem, though. I kept hearing an irritating sizzle in some material, but it was hard to pin down. Eventually I found a solid reproduction method, and it turns out I have a bad midrange on one tower. I was worried I would have to ship the thing back, and I had already gotten rid of the packaging... major irritation on the horizon, I thought. But nope--HTD is shipping me just the driver, which is apparently user serviceable. It's arriving via Priority Mail with a prepaid label to return the bad part. I was pretty pleased with the quality of support.