I LOVE it, but...
I think this show totally embodies the spirit of the original Star Trek series, but I find it difficult to warm to the new incarnations of Kirk, Spock et al. IMHO, I think the show would be more successful if they had created a new crew on a ship other than the Enterprise.
Some of the acting seems off the mark, but I think that could be due to the huge responsibility the actors must surely carry - the original cast is an incredibly tough act to follow.
All in all, a tremendously brave effort by all - especially the set designers, lighting and camera crew who have recreated the look of the original series perfectly (except for close-ups of females when the lens was always softened!).