Enjoyable but …… not relaxing.
I have a frustration with this game, I think it’s unfair that all the booster progress from each level gets lost at the end of each level. I think it would be much more enjoyable if I could actually use what I earn. So far the levels have been so simple there is no need for any booster at all. Would it really hurt the bottom line to let us keep what we earn to use in another level?