It really feels pretty balanced to me (up until the final five floors but to be totally fair it took me half of the queen bee fight to figure out her mechanic even though you can literally hover over stuff to figure out what it does because I'm stupid and forgot to)
I nearly played whole sunday. I can tell you round 4 if you will see bee queen or not. This is very much depending on the bonus offered between the rounds. Furthermore you need luck with the enemy waves. Some combos are very hard to beat. Too much randomness in my opinion. I like the game anyway.
