I was involved with a few demo units.
Overall a very good machine. High print quality, runs very true (no need to babysit the thing).
One thing to consider is whether or not you're running enough volume to make the machine profitable. For the initial setup you have ~6 linear feet of material waste. For pricier medias and shorter runs that becomes very cost prohibitive. This machine is best used for long run solid production.
A temperature controlled environment is a must with the 3000 as it is very sensitive to its environment and curing issues can crop up in a hurry.
Most of the machine is electronically controlled so small problems can become a very big headache if they are not diagnosed quickly. That coupled with a still growing and constantly updating firmware make for some production delays you need to be prepared to work around.
Support can be hit or miss, although it seems they're improving.
My overall opinion: A very powerful tool if you're running a large volume operation. As a sole production device it may be a bit of overkill.
Just my .02c