Hated the place.This was back in year 10 and I felt like I was in a detention center. Admittedly, it's the only coaching place I've tried (because my maths back then was consistently below average) and I could not stand it. Probably depends on the person though, since a lot of my peers attend - they have good grasp of the content, though sadly class time is wasted since it's all old news by then.
Honestly, never touched a coaching place again (esp. those run by 'asian' principles) and I'm consistently above average. There's really no need to subject yourself to this sort of environment if you can do all your classwork/homework and understand the concepts.