Preschool near Koh Kaew

Are there people here who send their kids to preschool in Phuket (koh kaew area or a bit outside that area)?

I got twin boys (now 16 months old) and think it could be fun for them to have playgroups with other kids, and be out of the house and moobaan every now and then.

So far they are doing swimming classes at Mantakids (opposite Central) and they love it.

Preschools that come to mind and that we want to go check out:

1. Baby genius

2. Gymboree

3. Rainbow trout (at boat lagoon)

4. somewhere else...

Looking for first hand experience.

Where does your kid go, how often, what kind of activities, prices, do they like it, what to look for, etc?