Since you aren't getting any replies, I can tell you my experience with the M3000. In short it is dated technology but reliable. The artpath software that runs it is pretty simple to use, but don't expect to be blown away by the interface. The machine is a tank, built pretty beefy. When I say dated technology I'm referring to the system that drives the machine and the optical sensor. The icut system is far superior, the gerber uses the old school laser eye which can be temperamental at times. It has a pot that can be adjusted, but as I said dated tech. The underlying operating system and software of the gerber is pretty dated also, adding and removing tools from the machine requires a com interface to DOS era style interface, from there you have to edit complex config files. Granted you don't need to use this menu very often (if ever). Three tool slots is very convenient and something that would be desirable if you were looking at other machines. We never had any issues with the router, although our machine was not a turbo. We did have issues with the oscillating knife tool wearing out and becoming very loud, although that tool was used pretty hard in our shop.
Now, all that being said the M3000 is a nice value, however some of the features of the high end cutters might be worth it. We would literally take a day cutting posters at on the M3000, whereas the ZUND as I understand it will do an entire roll start to finish with no intervention. Pretty significant time savings depending on the type of work you do!