African restaurants, preferably Hackney way on?

I know almost nothing about African food. Yes, I know Africa is not one place and there are many cuisines but that's the point: I know very little about any of it, with a small exception for Ethiopian food.

So where's best to go for food, for the chump who doesn't know anything about any of it but is has a swashbuckling palate that's ready for adventure? All budgets welcome.