Brilliant - how to make SE23 even better: more people from the north moving here ( there's quite a community of us)
I have lived all over london and it is the only area I have settled in. its a decent mix of folk and I know and talk to people on my street - which is not that common for london.
There are some nice little local restaurants and some decent pubs too. it is not the seething mass of 20s-30s party people like clapham which might appeal to newcomers to london, but it is not so superficial or transient like clapham.
round here also represents pretty good value for renting and buying with a mix of properties.
ok transport which is set to improve - depends where you work though

only draw back is it is miles from kings cross to get back up north.....