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.
Critical Dissonance: The critics almost universally love the show, while the normal audience is split between absolutely hating it, and loving it along with the critics. Additionally, the show gets very poor ratings, with its highest rated episode getting just over 1 million and most episodes getting 0.8 million viewers, which is somewhat low even for HBO's standards; it's Adored by the Network despite the abysmal ratings due to having a lot of social buzz, even if it's of the "hate it" variety.
Ensemble Darkhorse: Ray, who began as just 'Charlie's friend' and grew into a popular character, to the point of being promoted to a series regular for season 2.
Adam, too, given his increased, sympathetic presence in Season 2.
Elijah, who went from being a seemingly expository character concerning Hannah's troubled romantic past to one of the gang's regular friends and the show's main comic relief, thanks to his many memorable one-liners often snarking about the flaws of the other main characters.
Adam and Ray have a following within the fandom as well.
Hilarious in Hindsight: Marnie's mediocre singing, after Allison Williams' performance was one of the few generally praised things about the 2014 live show of Peter Pan.
Hype Backlash: It got a LOT of this, mainly as a result of the "voice of a generation" quote (which was taken out of context). Perhaps the most legitimate, ongoing criticism is that of the lack of diversity in the cast; as an article at Nerve pointed out it's weird even for privileged, white 20-somethings to have such a homogenous group of friends when they live in a city as diverse as New York. (Granted, this is a problem with a lot ofshows set inthe Big Apple, but most of them had older casts.)
Les Yay: between Marnie and Jessa, they make out during an attempted threesome in one episode (and seem a lot more into each other than the guy who propositioned them) and because of this some of their earlier fighting/dislike of each other seems more like UST
Marnie and Hannah even though it's mostly friendly.
Memetic Mutation: "I think I may be the voice of a generation." Though not in the best way, as it was widely misunderstood as an earnest statement by the show's creator through the character, when it's really ludicrous babbling while high on opium.
Narm: Most sex scenes with Marnie; as Allison Williams is apparently refraining from nudity, most of her attention in those scenes is focused on maneuvering her arms and hands to keep herself covered, which can reach highly ludicrous levels at times.
Nausea Fuel: You will never look at Q-Tips in quite the same way again.
Reality Subtext: This article suggests that Hannah and Sandy's conversation about her essay (he says nothing happens, she argues that what happens is that "a girl’s whole perspective on who she was, and her sexuality, changed") could be a pre-emptive response to criticism of the episode "One Man's Trash." Though it could just as well apply to several other episodes, or the series as a whole.
Marnie went from being a Base Breaker like all of the main girls to this by season 3, as even many previous sympathetic fans saw her almost complete disregard to the thoughts and feelings of those around her reaching nearly sociopathic levels, especially noted in her severe (but brilliantly subverted) Break the Cutie moment with Shoshanna when she non-chalantly reveals she had a fling with Shoshanna's ex, Ray.
Seasonal Rot: A Broken Base about whether season three was this or Growing the Beard, as while some decried some percieved flanderization of the main characters, less Cringe Comedy-type creative risks and excessive plot focus back on Hannah, some liked the more mature and subdued plot-lines and the overall more cohesive feel episode-to-episode. Season 4, however, is already proving to be even more divisive.
Tearjerker: "Sit-In" is one big episode of this, as Hannah deals with the fact that Adam got a new girlfriend while she was in Iowa. Particularly heartbreaking is the conversation between Hannah and Adam at the end, when they manage to have an honest, heartbreaking conversation about their dead relationship.
What an Idiot: While it has already been established that Hannah has No Social Skills, her impious behaviour at David's funeral stands out. She actually does try to act appropriately, but then she winds up expressing concern only for herself and her book project, in front of the widow, no less. Adam has to call her out several times during that story-arc.