Fun but changes were drastic
I bought their "Ultimate Gift Pack" and about 70k gems; which got my characters really strong and then guardians were added to the mix, which made me stronger. About eight weeks into my experience their platform changed, forcing free players to either spend or drop off...hopefully the daily "bosses" for resources are reverted, as their client base could dwindle due to the changes. This explains four stars, as opposed to a full five-star rating.
Overall it is a solid platform with awesome graphics and enjoyable gameplay. I would definitely recommend if you have lots and lots of time/patience.
Luisito el Toro about
Dungeon Crash