Any personal experience with British schools in Singapore?

Hi, we're just trying to find out whether a move to Singapore would work for us and would love to hear personal experience and advice. We have had three years in Europe so have done a move before. We're British with four children. We have two who from Sept would be yr 7 and 9 at a selective all girls grammar school. No3 child will be yr 6 and taking the 11+ with the hope that he would be getting a place at a selective all boys grammar and then no4 child will just be starting primary school. My main worry is schooling. Would anyone recommend or avoid any particular schools? I think we'd be looking at private schooling but as I'm just beginning to learn what's on offer this isn't certain. I guess that once we find the school then we'll know what area to look at for housing but we'd like family friendly. Any advice or thoughts would be gratefully received. Thank you!