I have one, it's a great piece. It's rare to get an Alien statue in such an aggressive pose; this one looks properly mean. The pieces fit together fine and aren't fragile at all. If you can pick one up for $200 or less, I say go for it.
What about it do you find off? Is it the mouth? Looks like they used the test costume for the sculpt. I quite like the weird mouth on it, it's a bit derpy but looks quite aggressive. Notice the costume still has the back spike they later got rid of though.
I think both the grid and unmarked head versions were available from the start. I pre-ordered mine (non-grid version) as soon as this statue was announced.