Needs a little more "reward" to keep players playing

I started playing this game, and was immediately frustrated about how slow progress was. I keep playing though. Challenging. One thing I dont care for, is it seems boards cannot be cleared without the use of an additional booster.
I do love that they added dog training, to get a mitt-full of rewards and boosters.
Something seems "sketchy" about coin rewards when the boards are cleared.

Aba-chu-ba about Gardenscapes, v1.7.0