Well, I don't agree with you at all. I liked it. I didn't OMG love it, but I think it was not that bad. DT was hot as hell, the ep was kinda funny a few times. It was not the best, but not the worse DW ep. Yeah, I liked it, even if your review scared me last evening LOL
And, yeah, Astrid was not the best character evah (and this crush/flirt/kisses thing kinda sux), but I liked her. I don't know why, and I can't explain, but before to see it I thought I will hate her (because nobody can't stand in for Rose), but she was cute, not interesting or something, but cute. (but I'm glad she's not the new companion)