I do.
Just FYI, I asked Mesa about the versions, and believe it or not, the new TriAxis is still "Version 2.0", which actually refers to just the software, not the hardware. The board for LD1 Red has been replaced with a newer one.
As far as how the new one sounds compared to the old... it's hard to tell. I had the old one for a short while and I didn't like LD1 Red, and I've had the new one for a while and I still don't like LD1 Red. What can I say, I guess I don't like Mesa pre-tone-control gain circuits. I suspect it would actually sound pretty killer when cranked (not possible in an apartment). I also suspect that it's just my playing style/preference.
I do love the LD2's, though, every one of them. Did I say love? I mean LOVE.