I went in 2007, But for me it was a bit of a bore. I don't know why, just was. Sad to see it gone though. I remembered that when it first opened up , the plan was to have 30+ of these across the country, but obivously that never happened.
I've been a couple of times. Would have been three times, but the third time I went to go there, it was already gone.
First was when Convergence was in Vegas. I think that was C9. The Klingon actor sang "Head Like a Hole" like a Klingon would. It was awesome.
Went to it a second time a few years later, which is when I had the time to go through everything. The Borg experience was nifty, but where it poked you in the back hurt.
Was in Vegas for a wedding a year or two back, and there were two things I wanted to do while we were there. See Spamalot (which was already done there by then) and go to Quark's (which was already gone by then).
I've been to it once, although I've been to Vegas a few times.
It was "alright", the "actors" made it nice.
Lost all my pics from it because I misplaced my camera and never found it. Actually, the whole trip was rather "bitter-sweet" in my mind, although it had to do with more things in my life going on at that time, not just the one experience.
Was hoping to go again with a more clear head and positive emotions, but never went again, even though I was in town again before they took it down (was too busy doing other things).