I haven't personally sent my kids there, but a friend of mine did enrol her daughter at ELFA Tampines and she said the teachers were quite attentive and the environment felt warm and structured. She mentioned the curriculum had a good mix of play-based and structured learning, which she appreciated since her girl was on the younger side. That said, every child settles differently, so it might be worth visiting and doing a trial class to see if the vibe suits your little one lah.