I have the Raptor 50 v2.  Its nice...the nicest heli I own really.

Im not really keen on nitro and prefer my electrics...but like the stability of the 50.  It is smooth as silk and if you get one I am sure you will be happy with it.  Im just not that great at auto rotating one down and nitro engines just have that "dead stick" dread in the back of my head the entire time.  Ive never had it die on me...just my own "phobia" of it so to speak.