I just returned my mini. I didn't like the fact that you were FORCED to use rafts to support the build. I also didn't like that you cannot fine tune a lot of the settings in the software. They are grayed out when you try to utilize them. You cannot change the print definition and a lot of the builds I did had filament strands all over the place. I'd say I was about 20% happy with the builds.
The rafts to not come off cleanly at all after you build. I was thinking about upgrading and getting the replicator 5th gen instead. Pros? cons? What are the other choices out there that are worthy?