Peking duck isn't something i have regularly all the time, so I've only been to Dayali a few times for special occasions. Location is fairly spacious with almost all-white decor, though despite all their space I felt the tables were too close together.
I ordered from a set menu that included peking duck. The portions were smaller than I'd expect as if they are trying to go a more gourmet route. The meat and sauces were great, it's just unsatisfying to go have chinese food for dinner and for the portions to be small. Other than that, none of the other dishes are too noteable.
Service was unimpressive. This is not a language barrier, because even if you spoke chinese to the servers, they will barely pay attention to you. This isn't uncommon for chinese restaurants, you just expect a bit more because of the fancier decor.