Despite the obvious set-ups for some situations, it's a fun episode!
Seeing the guys deal with having to share the loo with the ladies gave us a fun, typical Grimm rant. (Poor Tina!) Also, Boyle's talk with Habib about sharing the showers is amusing, as is the ladies responding to Grimm's distaste.
Hearing and seeing Fowler discuss a particular dispenser for the ladies was also amusing.
Kevin deciding whether or not to join CID in an illegal drink-in gets a "wacky",though understandable,twist. Gladstone and Kevin's interaction is some of the sweetest bits of the show. Maggie's reaction to Kevin's "problem" was totally in-character and sweet.
Maggie's problem was so telegraphed that Alexander Graham Bell said ,"Dude, I get it." Yet, it was understandable and empathic; who wouldn't be torn about how to deal with an essentially good sibling?
There is something just a bit extra funny in Fowler's appearance at the bar near the end and his requests of Patricia at the end of the episode. Rowan Atkinson just rocks!
I highly recommend this show and this episode in particular.