The Roger/Stan/Steve part of the plot was great. I feel like the more characters get involved in something, the better they all are. Sometimes you get too much Roger or too much Stan. I loved the payoff to the scene where Stan moved Francine out of the bedroom (when the lights turned on and suddenly Roger was in full S&M gear), and Roger biting off his finger and saying "They did that in the movie. I mean, if we're gonna go for it let's go for it."
I wasn't so enthusiastic about Reginald. I actually don't really remember his previous appearances too much, but I know he felt weird here. It sort of felt like I was watching a parodical pitch for a new Seth MacFarlane show with "a wise-cracking koala!"