Ergonomics is grds. very well resolved. Although there are 2 main drawbacks but lifted of advantages again. Everyone has to decide for themselves what is important to him.
Examples:
a) The handle now has a joystick, which allows you to control the focal areas - a huge benefit, you no longer contortions must now but make to adjust to the fields --- disadvantage: the battery can only downwardly open and a two-handed operation could be necessary - with practice you also manages only one battery to swap with one-hand operation. Since I have my batteries well under control and look, I change like this disadvantage gg. The joystick advantage.
b) The joystick could sit a little higher, but then had the thumb as a counterpressure to trigger any more or he would be constantly on the joystick (which is also annoying and error produced) space. So I got an excellent ergonomics for triggering (benefit) must always engage around a little in order to serve the stick (disadvantage). Since I like gg the disadvantages. Tausche the benefits and the handle is still sealed and magnesium, I find the handle perfectly solved and give it 5 stars.
Who the disadvantages outweigh the well comes to a different conclusion, but let everyone decide for themselves.
In conclusion: If the price is too high - no, original handle + sealed + metal as it is appropriate. Who it is too high, the remains still the replicas.