It's a place where my not mathematically inclined daughter doesn't resist to go. I think it helped here greatly at school where she went from being below the average grade level to the middle of it.
We've been taking her 3-4 times during a week and her effort was well rewarded.
My daughter was having severe anxiety about math, and this was in only kindergarten and first grade! So last summer we enrolled her for a summer session and she's had such a change! She's about to finish 2nd grade, having extended through the school year, and she now loves math. She's doing fantastic in her classroom, likes to go to Mathnasium, and wants to continue over the summer too for a head start on her 3rd grade curriculum. It's not cheap, but it's definitely been worth it.
Having recently moved from Australia, our main objective was to help both our kids to transit smoothly into the US education system especially in Maths. Our 10 year old enjoyed Mathnasium and looked forward for it everyday (and wasn't happy that the centre was closed on Fridays and Saturdays!). All work were done at the centre which meant they had time for homework and play when they came home. My 6th Grader has occasionally taken her homework to the centre too for some help which is great.