The huge probem with BL/Yaoi type series is that it is generally low budget and low quality anime, with close to no plot, often bad art/animation, bad music and mediocre characters. Also, the more it gets close to something that looks like a plot, the worse it tends to become, and that's what happened with Sukisho.
***Contains unimportant spoilers***
THE PLOT
I wasn't expecting much from it to be honest. Also, note that I wanted to ease up on the rating because in my experience, games don't really translate well into anime series. (Just look at Togainu no Chi, DRAMAtical Murder...) But in this case, it was a confusing mess, it was trying to be something unique, but it never really came to any conclusion and kept adding elements to it, so that you don't know what it's supposed to be anymore. Oh, and of course, LOTS of plot holes, which I don't really mind too much if they aren't appearing that often. It happened a LOT during Sukisho.
Not even one "arc" had a decent conclusion. I don't know if the authors honestly believed that constantly making open ends made the show deeper or if they just didn't care enough. I didn't know how the hell they've served to advance the plot, what they even were supposed to be about or how they're interacting with each other.
A lot of scenes were very out of place. Also, this anime shows some moments without explaining what just happened. For instance, in one of the last episodes, Sora is holding a knife and is getting brainwashed, but 3 seconds later we see Sora's brother dying. It took one episode to learn that Sora's brother sacrificed himself by walking into Sora's knife, because... Okay, there's no explanation for that.
Also, in the dialogue, art etc., you sense an intend to make it sound/look very cutesy, very feminine... and it's very unnatural and cringeworthy.
I do agree however that the main characters have a dynamic that's rather refreshing (the uke doesn't act like the stereotypical uke you'd find in most series for instance), and the fact that the protagonist is for once NOT the uke is also pretty nice.
ART
I personally didn't enjoy it that much. Those who like older manga styles of art might like it, so that just comes down to personal preferences. But what really bothered me was was what it trying to be and how it tried to make some characters look "handsome" or uber-femininely "kawaii", and I cringed so hard at that. The hair of the characters threw me off, besides for a minority of characters who looked ok. The backgrounds weren't special either, just normal.
SOUND
I just finished the anime yet can't remember any soundtrack, let alone one that stood out. It was just as bland as the rest, but I didn't perceive it as being that bad either.
CHARACTERS
To be honest, even after watching the series in one go, I still couldn't remember most of the characters' names.
Now, Sora and Sunao were the least bland characters in the whole story, and even then, they were too uninteresting to care about. Yoru however, looks and acts like a 10 year-old weeaboo's OC. Ran's personnality also enters that territory at times. Most other characters were very forgettable and average as hell.
ENJOYMENT
I gave it a 2 because it's just so... boring. It was definitely a bad anime, but not the kind of bad as in "so bad it becomes funny". It was just very bland. Hell, even the rare kissing/sex/fanservice scenes weren't that entertaining. If they weren't heavily censored, they didn't spark any fujoshi desire in me (except for one scene, but even that was short-lived), and to me, that's a pretty bad sign if an anime who caters to the fujoshi demography allows itself to be half-a**ed while minimizing everything BL related, because apparently, yaoi fangirls like bad anime so it's okay. (It doesn't make it better that most Otome/Fujoshi catered animes are pretty bad as well.
TL;DR
Do not watch this if you mind the quality of your anime.
Do watch if you really like yaoi and are able to overlook bad anime.
If you want to watch a boring, very bad anime to make fun of, I'm not sure you can enjoy it that way either.
