Very bad, don't join any course. After you joined it, you will find very difficult to book the time for facial. Afterwards, you still keep lots of coupon and near expired date. Most of the complaints of Modern Beauty.
Yes, don't join any course. If you do the facial, they will ask you deduct many coupons (the total coupons amount always over HKD1,000) or use the cash HKD500 to do 1 facial.