Speaking as a person that hasn't seen Blood+ for some reason(yea I know shame on me) I couldn't rage like the some people here because it was not Blood+ but I must say this series was boring as hell with little to no plot in the first 5 episodes.
I was basically saying to my self; "this cant be that bad its gonna get better soon" up until episode 5, at this point I was seriously thinking about dropping it for being extremely boring but this, I mean episodes 6 and 7, completely blew me away.The sheer amount of story we got on just 2 episodes is amazing(compared to the story development in the series so far).
This series came all the way from one of the most boring, repetitive and stupid of this season to one of those anime that I'm eagerly waiting for next week to come so I can see 1 more episode of it.
Errr as for Episode 7...
Lets just say it was freaking awesome, we didnt see anymore of Sayas friends getting killed but we lernt a little bit more about Saya-chans past by that Elder-Bairn(hur dur caterpillar guy) and the dog, there isnt anything i can say about the dog at the moment except that he appears to some kind of badass which will act as a catalyst for the further development of the plot