I think its a great crypto success story in the case of showing how to create something without an ICO or delegation and creating a functional ecosystem. As for the game itself its pretty basic but i expect it to impve over time we saw they want to release spells and added layers of complexity like user run tournaments in future which would improve retention and acquisition.

Overall it probably the best dApp on the steem blockchain and its only a few months old. Give it a year or more, as soon as the cryptokitties peeps catch on we could see a major push after SMT's are live