The best value Helicopter : Hirobo-Freya, Hirobo-Sceadu, X-Cell - Fury Or JR - Vigor
Without a doubt the Vigor CS , a large solid, well designed machine.One of the more expensive machines to repair.
The Vigor CS with the OS70 , little can come close to it.
The Scedeau 50 is in no league to the rest , it is a smaller machine.A very good heli though
Since u from Hong Kong go with a Jap machine , theres little to no more that an XCell can offer.In the States the Jap machines are whipping the rest.
Just my personal opinion !