I like how easy it was for me as a dental student who has never used any type of CEREC CAD/ CAM system before.
The ease in which your drawings are transferred from DICOM images makes setup very quick! Not much but sometimes when selecting points for measurements there can be some slowness with moving around on screen so just make sure its not too slow if using on someone else's computer. It does what we need it to do well enough and doesn't always have all features available at once (although they may fix those issues soon). We use it mostly for crowns on endo patients because it allows us to take molds quickly during treatment planning sessions instead of waiting days till after placement.