I loved the Buffybot, which totally surprised me, because I expected it to be tedious and annoying, but the way the part was written and played was hilarious, and I liked the way the others interacted with it. I mean, they didn't treat it as merely a machine, that made it interesting, because it showed so much of their personalities, and their feelings for Buffy as well.
Buffybot is one of my all time favorite characters from the show.