From my experience HT has pretty bad CS taking care of easy fixes. My issue was small and isolated and this was my case:
Way back when I bought the AVP alien a piece was missing. Small rubber thing on it's leg. I knew it was missing because the right leg had it and the left didn't. I emailed HT about it because I got it from my LCS and I even took pictures, and I never even got an email back.
If they didn't have the part I could understand and a cordial email explaining that would have sufficed...but nothing. And if they had the part (which I am sure would cost under $5 to ship) it would have been easy to ship.
Very small part, very small issue - but still, sometimes it's the small things that count and when/if a company goes above and beyond for their costumers, that says a lot about the company. But look I've still spend thousands of dollars on HT since...so they didn't loose a customer - just puts a tarnish on their image from my point of view.