I have only flown with mikados Vbar so i have no experiance with any other systems.
They become very precise in the way they fly.
You can set the Vbar to fly from mild 2 wild depending on your settings.
The speed of the roll rate of the heli goes through the roof they really will snap over nice and fast if you want.
Even with lower head speeds the roll rate can still be dialed up to be very fast and lower head speed = longer flight times.
The gyro sysytem gives it grate stability in all flight types Hovering,fff,3D.
The tail also works very good nice crisp stops ect the thing really holds well.
On the other hand they work very well for scale helis also using the vbar system for the slow and gracefull type flying.
Your heli can go from slow smooth and gentle to a seriously fast 3D machine by the flick of a switch.
I really like the way the heli flys.
The V4 software has made the use of a vbar system much much easyer, and if its going into a logo it is nearly as easy as plug and play.
LOL i sound like a sales REP.