If I get guaranteed support and operation of the software are also ready to buy immediately.
Hi Gionata,
The support for Mach and the speedy resolution of any problems you may encounter is second to none and the size and popularity of this forum (as well as on the Zone) is testament to that.
There are some, very basic, demo GCodes here
http://www.machsupport.com/forum/index.php/topic,18345.0.html which are within the 500 line limit and intended for Mach evaluation just to get a feel of how it performs with any particular machine.
Tweakie.