My daughter used to learn at Stardford (summer courses and 3 months weekday courses) but I quit finally as I found that the teachers there are not really focus on teaching! I understand that the kids need to practice more so as to improve their skill. But I can't accept the teachers just asked the kids to swim without really teaching them the skill.
My daughter has been learning at 巨鯨 for 6 months (one lesson per week) and she has improved a lot !!!!!! Teachers are the same throughout the 10-lessons course. And most importantly, teachers there are really 'teaching' the kids, not just asked them to swim by themselves.