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I don't have any experience of any of these, save looking at Teddy Bear Nursery when looking for a place for DS about 4 years ago. The staff seemed nice but it was a bit dingy and little or no outdoor space from what I remember.
Friends of mine have had very good experiences at Clapton Park Children's Centre at the end of Daubeney Road.
My little girl has been at Indepedent Place since she was 8 months (she's nearly 3 now) and has always been very happy and secure there. There was a bit of disruption a while back with a change of manager and several staff, but things have settled down again and the children didn't seem bothered by it. The garden is small but adequate and they made some improvements to it and to the baby room recently. I haven't got any experience of the others, but I would recommend visiting Independent Place to see what you think.