Atlantis had a great kick off, especially being introduced to us with some crossover of the Stargate Sg-1 crew comprising of the two original Stargate characters O'Neill and Jackson.
With exceptional fx, some great makeup on the bad guys and what is forming to be a good team on the front line Atlantis is making a good impression and after winding down it's premiere season, its actors have already signed up for a five year deal proving it's popularity. Bringing in some oft he best audiences for a premiere sci-fi show it has potential to be worthy to carry on the Stargate franchise.
The characters are likable, if we get to know them a little better. I feared a few may be culled in order for it to continue but it hasn't happened yet. Sarcastic spars can be a little too much but it's the kind of humour I'm drawn to so I shouldn't complain too much.
it will be nice to get to know the characters better and if five years has been called for it gives us plenty of time. I do wonder about the bad guys, unlike Stargate SG-1's Gould, who we also got to know and had some sort of personality to them, it seems all the Wraith are around for is to suck out lifeforces before going back to sleep. For me they provide a convincing scare fest of 'Wouldnt want to meet one down a dark ally' but as to their staying power I'm not convinced, if they sleep every one hundred and fifty years, and yes we accidentally woke them up, wouldn't they go back to sleep after a while, are they now destined to stay awake forever in pursuit of Earth which they conveniently found out in the first episode.
I'm still impressed y them, the look, the threat, but compared to the Gould and other bad guys of SG-1 like the replicators I do hope other enemies come into play lest they become too boring by the end of the second season.
All in all,Atlantis has potential, and is worthy to carry on the franchise as the first spin off, ( i hope for a few) as long as the characters stay likable, the bad guys stay believable and the plots don't lose themselves in SG-1esque outlines.