I've just bought v911
beside this one I have one noob 100 coaxial heli, F47 not trained well yet and F45 on flight in the building (waiting end of winter). I decided to buy V911 due to the "feature for beginners"
in F47. For sure the biggest adventage of F47 is all is plugged or screwed and very good quality so easy maintanance while v911 has all soldered to the board.
However as i said just bought v911 with some spares and cant whithstand waiting for it. I hope it will be well precise indoor heli for practicing precise landings.