Very busy on weekend nights! But all the staff are very friendly and polite. I don't know if all buffets are expected to have good and bad food, but at Mandarin you will find some delicious dishes(spicy chicken, fruit tarts) and some not so good dishes (honey garlic ribs). I was also surprised to see so many empty tables when we were seated after 40min wait, since there's probably 30 people waiting. So they really need to work on seating people more efficiently!