These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Ensemble Darkhorse: Ling. She was originally only a recurring character, but, since fans loved her, she was moved to a full time cast member. After the actress who played her left the show, the popularity of the show on a whole went down quite a bit.
Memetic Mutation: The dancing baby hallucinations resulted in animated GIFs of dancing babies spreading like wildfire across the Internet and turning up on many websites and in many mailboxes. Also, the Blue Suede's cover of Hooked on a Feeling became associated with the dancing baby (until Guardians of the Galaxy came along).
Strawman Has a Point: John Cage starts noticing that Nelle is a snob, when she doesn't remember Billy's secretary's name and admits that she wouldn't date a janitor. Nelle responds by pointing out that John only remembers Sandy's name because she's cute and asks him if he would date an ugly woman — only to hear that it's different. Josh then proceeds to call Nelle an 'elitist rich bitch snob' and they start to fall out. While Nelle indeed is an 'elitist rich bitch snob' (and does some things to make herself look unsympathetic, like breaking up with John when he's being stuck in the elevator) and John does get called out of his behavior by Richard after he goes out of line during his conflict with Nelle, her initial point that women (or at least herself) are attracted to successful men just as men (or at least John) are attracted to beautiful women, never gets acknowledged in the show. We're supposed to side with John despite the fact that what started their conflict was simply Nelle not being a hypocrite about her tastes.
Suetiful All Along: While Ally certainly is attractive, the number of men declaring her oh-so-special (even when they'd met her an hour before) over the course of the series gets a little silly.
They Changed It, Now It Sucks: The first season featured cool CGI antics reminiscent of old Warner Brother cartoons with eyes popping out and hearts pounding out of characters' chests. Later seasons dropped the CGI cut-aways and focused on the antics of the characters.
Wangst: Pretty much everybody regarding their love lives at one point or another.
The Woobie: John Cage, a sweet guy who seems to get the short end of the stick from the universe, from rejection to half the cast accidentally laughing at his pet frog's funeral.