Hi all, am doing a homework research. Understand that 2 very famous cnc controllers in European market are Siemens and Heidenhain. A few big cnc OEM outside Europe has been installing these controllers for their machines to be selling especially in US and China. This 2 controllers are said to be very good in 5 axis machining especially Heidenhain. From my other research, they said Siemens is catching up very fast with various new functions and improved finishing. I would like to gather a summary comment on how do you feel for both controllers in term of their user friendliness, customer support and ofcos which one you like more :-) Thanks.