umm honestly in my opinion he is really limited and can be cringy, however I would give it a try. I thought he is good in only one certain type of character and if he tries anything else then it looks pretty weird. In general he is not really emotive so that is what shows in his dramas. he's not as bad as Yunho and some of EXO (don't come at me)
I prefer his idol work but I'd still give a shot to those.
don;t worry I agree most idols are bad at acting lmao eunwoo isn't emotive? I'm guessing from the thread replies he's given a cold character to play but I hope the storylines aren't straight out of Wattpad or something