I don't really know how to review this without giving away everything. There isn't much of a story, once the basic plot is revealed (in the first and second episodes) it's pretty obvious what will happen. So without spoilers, the acting was not good.
Or the director made horrible choices and the actors did what he told them. No way to know for sure. Rak, one of the MLs was so blank that he looked stupid. Honestly, minus one or two scenes where he cried and once when he laughed, he just stared blankly at everyone around him all the time. No matter the situation, he just stared. He didn't speak, there wasn't any reason for the blank stares with no dialogue, it was just ... bad. I think the intention was meant to be that he looked innocent and didn't have any kind of bad intention but it just came off as him being too stupid to understand or not having any kind of personality.

There wasn't much chemistry between the two MLs. Mostly because Rak always looked like he had no idea what was happening. There was one exception to his weird face blankness, just before the first NC scene (I wouldn't call it NC really, but I guess the first sexy scene) between the two, Rak actually does not have a blank face. For this one, he looks like he totally knows what is going to happen and is anticipating. This leads me to believe that the director was the problem, not the actor, but I can't be sure. Another weirdness was that Dino, the other ML, seemed to need constant reassurance during the sexy moments. He kept asking how he was doing. I don't know about everyone else, but in my experience, if you're asking while you're doing, you're expending too much energy on the wrong things. Focus is important. I found that strange, but not bad. As far as Rak's reaction, "Dino is the best" with an almost comically wide eyed stare, was the best he could do, but the scene wasn't sexy, it was distracting and cringy. Later Dino was kissing him with so much tongue, it just made me want to wash my face.

Seekram (Rak's ex best friend) was creepy to say the least, but I'm not sure if that was bad acting or just poor directorial choices. Mek (the ex-boyfriend) was just a loser, but not necessarily a bad actor. In fact, Seekram and Mek weren't awesome, but they weren't terrible at their parts. None of the support roles were as weird as the main roles. The guest roles were plentiful. Seriously, they found people from a lot of BLs to come and be on screen for a few minutes without having much to say or anything to the story. Just cameos, I guess. Not really sure why they opted for that. To draw attention to the show? Who knows. Anyway, the story wasn't all that great and sometimes the acting was just cringe, so the show didn't really hit well for me. It wasn't terrible, but it wasn't good.

The story is so predictable as to be boring and the jokes were too obvious to be funny. The OST was decent, but I never put too much weight into the music. Because of the predictability and lack of plot outside of the romance, this show has low rewatch value. If you like just a fluffy love story with not a lot of acting ability, this one is for you. I heard some of the support roles will have shows of their own, and I'm interested to see if they are any better than this one.