By "something feels a bit off", I mean exactly that: It could have been good, but there's somthing stopping you from thinking that, although it's difficult to pinpoint exactly what. I have landed on "they tried too hard".
How is it possible to try too hard? Dialogue, story-archs, filmography, subplots and twists and turns: It just feels a bit over-exaggerated.
I did take a break from this, but I kind of liked the main actors, so I decided to complete it.