I've been looking into buying this App, but i have some questions about it first...

Can i sync this in some way with traktor? Maybe not sync it..but be able to use the effects on Meta.Dj with traktor??

MetaDj has a tons of effects that sound similar to pioneer's. They even have a riser effect that produces a white noise, similar to the DJM2000, this is a very good thing to use in between song transitions.