Inconsistencies aside, it was a good episode IMO. It is always cool to see new ancient technology but I can shake the feeling that if the ancients could not defeat the Wraith, why should humans from earth. Additionally, the Wraith have another 10,000 years of evolution and advancement since the battle with the ancients. I don't know, I really like SGA but the whole fighting the Wraith storyline is inconsistent. I guess this time around the Wraith are more fractured and without a central control they are weaker, sort of the old war time strategy of "divide and conquer". Just saying.