The crime is somewhat higher than average (the Green is a hotspot - see the Safer Southwark site) and there is the odd loon but I don't find it particularly threatening.
It is a very busy area. The shops stay open late (veg and *ahem* alcohol, plus... DIY products) and there is actually quite a bit to do in the area.
There are a few good pubs / bars (some of which are a bit tucked away, and some quite smart ones) and a reasonable number of places to eat - Turkish, Vietnamese, Italian, a Nandos etc.
I wouldn't really call it bland. It lacks in the in-yer-face blast of Brixton but as S London goes there is more to it than most areas. It also pisses on Brixton in architectural terms and has some of the most attractive streets in S London in which to live. It also has some of the least attractive council estates. The two ends of it are very different.
There is no tube and the rail stations are at the extremities of the areas, so you would be getting the bus a lot. It doesn't take long to get to Oval or Elephant, hence illustrating that it is pretty central.