I quite enjoyed my time with this game. I made it to level 7 once I understood how the operators work, and felt the only way I could lose at that point was to get dealt some pretty bad hands. (which did almost happen at a couple points)
I did seem to encounter a bug though. When battles last long enough, primarily boss battles, the bits I draw from the deck all end up having 0 health, (it also seems to affect the opponent) which makes it more of a challenge since you now have to also use an operator or the bit will immediately be out of play. I believe the bit cards might not reset after their health reaches 0, which could explain the problem. I didn't mind the added challenge too much, but it was strange to say the least.