M'kay, just watched the premiere...
The first thing to bug the ever living shite out of me is the fact that the sentient aliens are all basically humans in bad make-up. There have several different species of aliens in this town but they're all English speaking/human acting types of "creatures" -- hell, they're not even "creatures", they're just humans walking around in make-up. There's more that bugs me about this but I don't want to rant too much right now.
The next thing that bugged me was the fact that they didn't explain much, if anything, about how the aliens got to Earth and why they terraformed it and why their ships were all destroyed in orbit. They also didn't explain how every alien can breathe Earth's atmosphere.
The one good part was that we got to see Grant Bowler with his shirt off, although the sex scene was rather weak I thought.
Okay, enough about this show as I feel a rant coming on and can't really indulge it right now.
Suffice to say I don't think this show will last very long. Or, to put it in language we can all understand: SyFy strikes again!