Heart Grinder --> XP --> Donuts
Erm. Well, what level are you on now? if you're above level 15/16, you wont get far! beyond there you need over 10,000XP to advance to the next level...
Forum Discussion
I concur that the appearance of the grinder in the short update means that's all you're going to get. I'm still collecting hearts but I'm just buying decorations and putting them into storage for possible future use. IMHO for the amount of cash it gives you grinding hearts it just isn't worth it.
