Hi, I'm in Tonbridge - with regard to Primary, Woodlands is very good, but my dd goes to St Margarets Catholic. Might just out myself here! She did go to preschool in Woodlands school grounds, where my ds will also be going, as it is also very good. Very hard to get into but lovely school.
Longmead, well, I certainly wouldn't, it's quite "rough" but obviously some like it! (sorry if i sound a bit up myself, i'm not!) St stephens doesn't have the best reputation, but it isn't as bad as some think. They don't push brighter children too much, i think. Slade, not bad, Cage Green, not so sure but has good SN.
Area wise, if you choose a school in the south, live the south side of the high street, also in the north, as traffic can be pretty bad at peak times. I live north. Lots for kids to do and toddler groups, but most in town so a little further if you live north. Not far, though.
I wouldn't live near Longmead, but Lavender Hill is ok.
Let me know if you have any other questions!