1) I did not send my baby to the class so cant comment much.but very subjective. some said worth it, can see how the kid behave, some say no.

2)I did research on the classes on Schida and Heguru. both about the same. they enroll in as by semester like college. If i did not recalled wrongly, about 2.2k to 2.4k per semester (3 semster/year) monthly at about 500 plus.

3)The class is conducted on every week. As for Schida, classes on Thurs, Fri, Sat and Sun. but only go for one day class per week. you can choose which day to go. Sat and Sun classes are higher fees as about 100 to 200. I heard for a kid to see the results or improvement, it usually better to folllow up the course for about 2years.

4) You can send ur baby as early as 6months. But bear in mind that the waiting list is long. you have to register and put ur name there. coz each classes only for like 3 to 4 kids max.so classes n instructor very limited.

I did considered to send my baby there but considering the fees is so high. every month about 600 and need to add up travel cost as well as time. coz you need to at least have one parent or someone to be with the kid to attend the class. when ure home, you need to practice with the kid as well so have to attend the class.