There has been a lot of negativity about this show, but I disagree with the naysayers.
This show is more adult and serious. If your looking for a show that resolves each episode by the end of each episode, then this is not that show. If your looking for the usual Stargate humour, then this is not that show.
It has taken a leaf out of BSG and decided to go gritty and dark. Many have slated the show for adapting to BSG, but they need to realise that almost all TV and movies are rip offs of something else.
I am enjoying the show and hope it's renewed for another season as it has just started to pick up pace.
I enjoy the performance of many of the characters, but some could be easily ditched next season. Dr Rush is a great character and Robert Carlyle has done an excellent job. I also like most of the science guys. But, characters like Chloe and Eli have become a little tedious and as each episode goes on they don't grow but seem to conform to the bland recipe they have all season.
This is a good show and it seems to me like they are building a good story arc instead of the individually satisfying episodes.