I have used EC extensivly for 2d and 3d applications. I love (LOVE) the software itself for these applications, but it is worthless when it comes to 4th axis milling. I even got a post processor from EC and I couldnt get it to work for anything more than indexing and unwrapped milling (3 1/2D) full 4 axis is just non existant. Not sure about the 5 axis stuff.. if its as bad as the 4x then I wouldnt use it.
The support within itself isnt very good. In the help files under search I have literally typed in the command I was useing and it showed no results.(not just once)
DONT MIND MY SPELLING ... IM JUST A MASHINIST