I was using Poisoned until there was some problem with expiration of the gIft daemon. xFactor is an excellent replacement. I like the interface (self-contained, no drawers) better than Poisoned.

I'd give it 5 stars except it's crashed a couple of times randomly, and a few features don't seem to respond (such as preview file).

Overall, a good app. Nice clean interface. Just needs some minor stability improvment.