Nasu sex scenes are awkward anyway, though the CG dragon *was* a rather stupid substitution. The anime itself was a decent adaptation of the Fate route, with the UBW and Caster scenes being a nice touch.
Bisexual Rin will live on in our hearts forever. I wonder how much use that "mana_transfer_dragon" tag will get...
It's not BAD, per se, it's just not a tenth as good as Fate deserves. If you see it without playing the game, it's -okay-. Not great, but not bad, it really only looks horrible when you compare it to what should have been, based on the game. Although yes, the dragon thing was a bit crap. I believe in Realta Nua they explain it a bit better at least, but still.
I did not like the whole Casterpart/Sakura (as a DarkSakura-fan I hate it, actually), but otherwise the Anime was quite decent. Dragon or not, this part wasnt that important to me anyways.
"I'm only going to demonstrate this once, so watch closely. You put your forehead to her forehead, then you hang your tongues out like dawgs." "You lost me."