i currently fly the joss stik with a saito 72 and i now have traded a totaled heli for a javelin 2 new in the box with a gms 47 and has all servos i was wondering how well does the javelin flies and with my joss stik experience could i fly the javelin thank you very much

I don't think you'll have any problems...if in dought get somebody to test fly it for you and buddy box for the first flight or so.
You'll love this after a Joss Stick... may be not the engine.