they are costly but seems to be good, u have other options in the same area:
Noor Al-Khaleej started their KG this year back side of Gulf times (expensive and very poor education and morals)
Al-Jazeera (cheap and old) back side of doha bank C ring branch
Al-Thorayya KG (where my son is going now) newly opened this year back side of gulf times. so far i can't judge coz my son didn't complete 1 month yet but so far i am not fully satisfied.