The series was interesting overall, using the office setting, they gave us new plotlines and working issues. I think that the production changes affected, but i wouldn't go that far as to say that this is a bad series, for me is an step down from HIStory 3 (that could have happened either way because those 2 are top notch 9 & 9.5 series, very hard to improve) and neck to neck with HIStory 2.

The acting was good, not only from our main 4, but also the rest, specially the father of the non blood related brothers. The OST was quite good as well. Enjoyed the wardrobe, i think that the stylist did a great job portraying all their personalities through their fashion sense.

The story started low for me, specially the second couple, and later on they knew how to pick it up and elevate it.
The main couple is what triggers people the most, because the lived together as brothers for some years and some controversial stuff. Is not that i don't understand why it can feel off, specially some scenes are a bit (much) of a controversy, but i see it as art, art is there to explore things, it doesn't need to be an honest representation of what is right in society. We see in media all kinds of violence, gore, craziness... all the things that are wrong as well, so even if you would not agree with something like that in real life, you can watch it and understand the storyline withouth needing to be a perfect sunny portray of morals. I saw a movie where a dude was in love with a MALE GOAT, killed him while being jealous, and after 20 years was so not over that keept getting male prostitutes to dress like that damn goat and have sex with them so... yes, i don't see that as a right, morally correct and fluffly thing, but i totally cried while laughing and found it amusing LMAO
As for the second couple, their characters are vey charming, both of them, way more than the main couple, and that made me fall for them even stronger. I just didn't enjoy the childish start of their story, the shippers thing and all that... it felt like i was in an school GMMTV bl (upsie) but with adults. Later on, when all that passed, they made it a really sweet and nice love story, with some very interesting topics of conflict between gay couples such as their bed preferences. They also have boom as chemistry, and are long time friends in real life, so that was a plus indeed.
The cameos from HIStory MODC made it even more worth it ^^ My heart felt warmer at the end.

Overall, i enjoyed the series, and saw the great things about it, even between the moral debate, is not perfect, but is good.

Worth to watch? totally

Included in my top 10? No

I'll watch it again? Some scenes and plotlines, not in full lenght.