I thought this ep was good, and yet bad.
For me, the Ori are increasingly tiresome. I hope they don't go on season after season...this ep was interesting, especially the 'lawyer' part which I thought was the highlight and an interesting debate point.
However, we didn't learn much--I suppose this ep was needed to show the mechanics of how the Ori took control (and I assume, some 35% of the galaxy? estimate). But we didn't learn much--aside from possible Ori manufacturing of the plague. Otherwise, the reason why the Ori need worshipping is still unclear.
And I felt a deeply depreessing sense at the end, that people were going to be hoodwinked all over again, first the Goa'uld, now the Ori...ugh.
And "Hallowed are the Ori" is getting really really annoying. Makes me want to scream!!!
Otherwise, I think there was an interesting subplot with Dr. Lam and Gen. Landry, and I think that Daniel did a good job, Vala was good...
...Teal'c is dangerously close to rivaling the 'Worf syndrome' in the Star Trek movies...aka why is he there? Early on, it starts with tenuous 'visit explanations' and then they give up, and dispense with any explanation at all. But it's not as bad as Worf in the TNG movies, and I'm glad to see Teal'c around.
So, in general I think this ep was needed - to show the casual viewer what the Ori are all about, but essentially it's the bait-and-switch--spread a virus, then cure it and be worshipped as gods. Ugh.