'Kay, so real quick like. I enjoyed this issue, but not as much as some of the others. The whole 'vamp being set a fire' thing doesn't bother me at all. I mean, he did just reveal a plan to de-slayerize ALL of the slayers, including Buffy, right? So wouldn't that mean that when all of the slayers were just regular girls again, the vamps would probably torture and kill them, mercilessly? I mean, I think given the chance they would, vampires are evil after all. So, one up for the good guys!
Renee getting killed is necessary, I think. I mean, I kinda saw it coming a little bit when they were reeling us in with all the interaction between her and Xander (tho I was in denial). It kinda needed that, "OMG!" factor, and I think ending this issue with that was a good decision. IMO.
Dawn as a giant, I'd like to think her strength is somewhat proportionate to her size. I don't know though. All I do know is that I enjoyed the scenes, since I'm a bit of a Godzilla fan.
As far as Buffy and Satsu goes, I'm just not real sure about it. I'm still getting a slight inkling that she's the traitor, or will be. I mean, I don't have any evidence to back that up, just a feeling.