I can only speak for myself, I more or less wrote off the studio for now until one of the reliable reviewer says otherwise. CO was one of the first place which got me into the semi-legit world but I discovered much better places. A couple years ago, pre-pandemic, I went back twice to try them out again. The location is good, the rooms are big with showers, I like the facilities. Each time I go, I was greeted by ladies who are a little chubbier, a lot louder, and a lot greedier than I like. All of that I can overlook if the service was exceptional, it was not. So I stopped going again.
Again, just my personal experience. May be if I understand Chinese, I would feel differently but I find that, as soon as a customer arrive, the loud discussion as to whose turn it is and the death glare when you choose someone else a real turn off.