First of all, here's a recommendation: make sure to find good subtitles for this series. When I tried to watch the first episode with English subtitles, they were so bad that I seriously considered dropping the show altogether. I was lucky enough to find good subtitles in my native language, but if I hadn't, I don't think I would have watched anything past the second episode. Also, the first two episodes are very slow and the pace only picks up from the third episode, so that wouldn't have helped either.

The plot of the story is not very convincing. There are good tropes that could have made the story interesting, but all of them felt very superficial and inconsistent: some elements were introduced and then forgotten, some others stayed for the entire story but never felt as crucial as they were probably meant to be (like the rivalry between Dorm 2 and Dorm 3, which kept being brought up and then suddenly forgotten at every turn). I was under the impression that the writers came up with different ideas, then were indecisive about which one they could pick, and finally chose to include all of them. I felt like I was being swept left and right by the plot and its constant changes in direction, so after a while I just stopped questioning anything that was happening in the story, and focused on the romance.
The story of each couple isn't much less confusing than the overarching plot, but the chemistry of the main pair made up for it. Ai and Songkhram have to be one of the most adorable on-screen couples I've seen and all their moments together had me glued to the screen; the development of their relationship was also pretty good despite everything. The secondary couples didn't get the same care, unfortunately: I feel like Pipe and Meen could have shown much more, but the pacing was off and their story ended up feeling unsatisfying to me. As for Pluster and Nano, they didn't really have any sort of subplot of their own to begin with - either that or it was just so insignificant that it didn't even catch my eye.

Overall, I'm sure I will remember this series just because of Ai and Songkhram and not much else. I only recommend watching as long as you don't have high expectations for the story.