Depends on what you consider fun!
I live here now. It's definitely OK!
If you're into live music, there's the Earl (
www.badearl.com) and the 529 (529atl.com) and Drunken Unicorn.
I would avoid Little Five Points at all costs, unless you wanna record shop (Criminal Records or Wax and Facts) or book shop (A Cappella). If you enjoy adult beverages, and need to drink away the stink of gutterpunks, visit The Porter Beer Bar while in that area.
Lotsa food here. LOTSA. Unfortunately, a lot of it is overhyped/overpriced/etc. If you need specific recommendations, let me know what kind of stuff you enjoy.
The High Museum has a Cartier-Bresson exhibit through the end of May. The botanical gardens are pricy but worth it if you are into flowers and such.
You can play Spot Henry Owings, which is the ATL spin on Austin's Spot Harry Knowles.
I feel like I've written a lot without saying much.