As mentioned in another review, this show is NOT a high-star series. The editing and placement of the various storylines create quite a mess if looked at with an overall viewpoint. But here's the catch, despite the unbalanced screentime and the confusing start, each couple has a really nice story of their own. If you separated Fighter & Tutor and Zon & Saifah's stories and made them into their own small miniseries it would be great. Each storyline goes well on their own and is what makes this an enjoyable watch.
I do wish that there were more focus on some of the smaller couples as well, as I saw potential in each of them, but in reality, many of the couples could've been omitted from the main series, to create a smoother and less confusing show. These couples were somewhat just thrown in to simply add more couples, which is fine if you're able to convey their arcs in a good way, which sadly Why R U did not manage to do. The stories were nice, but cut way too short, giving the viewer a difficult time to fully enjoy the couples. One was suddenly rushed due to them not having screen time for the majority of the last episodes, and another one just seemed to suddenly disappear and show up again in the last episode. Honestly, these couples weren't needed, the show could've been just fine with its main focus being on only FTTT and Saizon.

With that being said, the acting was really nice. The weakest actor of the main 4 comes from Jimmy who played Saifah imo. He was not bad as per se, but he was also nowhere near as good as either Saint (Tutor) or/and Zee (Fighter). The reason why Tommy wasn't mentioned next to those two, is because he lays on the 2nd place on my list, with Saint and Zee having a shared 1st, he did great at portraying the character that Zon was. His face was full of great expressions but there were times where he lacked, but both Tommy and Jimmy are getting there, so just give them a few more acting jobs and they'll be able to seal the deal.
Saint is great as always. I've only ever seen him in Love By Chance, and although I see similarities in both Pete and Tutor, Tutor is definitely a much more outspoken character, and it was nice to see Saint play someone whose personality is close to his irl persona.
As for Zee, it was my first experience with him and he did great. His eyes said tons and oof you can't forget his crying in ep 12, that shit hurt. I'll make sure to keep my eye out for him in the future.
I can't really say much about the other actors, as I don't personally think they got enough time to show off their potential.

Despite the unfairness of the screentime, this show was still enjoyable. The abundance of FTTT made me miss Saizon tons, and the fulfillment was great when they finally got their screentime. I can't wait for their special.
The plot tho, if you ommit FTTT and Saizon's main arcs, was messy. What happened to Zon's sister? Her role was much larger in the beginning but she suddenly disappeared. Also, Hwahwa moved on so damn fast, it was pretty funny ngl. But the way they showed Day, in the beginning, made me believe that their storyline would be more fulfilling, but everything happened so fast and suddenly they were out of the picture, which was sad as I would've loved to see their development better.

To conclude,
Why R U is an entertaining show if you don't take it too seriously. Ignore the messiness of the side plots and the unbalanced screentime and you'll get two great relationships to follow. The chemistry is great and the kiss scenes are there in an abundance (FTTT, I'm looking at you). Stay for the chemistry and not the structure and you'll be sure to have a great time.

And tbh, despite not liking the theme song, I jam to it everyday.