I really enjoyed this one! The art and polish are very good and I felt there is a good balance between skill and luck.
The upgrades really made a big difference, and I could tell before the level even started whether my chance of passing is good or not. I made it up to level 7, although I got a whopping score of 4000+ on level 6, so I might have gotten further if I didn't buy a high risk roll... I just kept buying upgrades, but I'd change my strategy now to save some coins for later rounds to buy at least 1 good roll.
As for controls, they were pretty good. Maybe I'd like the cutting area to be a bit wider because I sometimes failed to make the cut in one move.
Cheers!