MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I'm a Slic3r user with a Printrbot and it doesn't seem to want to slice with slic3r, however it slices quite nicely with Cura.
I downloaded Cura and I was pleasantly surprised that they have printerbot settings out of the box. Cura also lets you save GCODE which you can then load into repetier if thats your preferred program for controlling the printer.
Great model overall, I printed a 50% version which came out nicely, doing 70% next and finally I will print one at 100% overnight.