You are right. The marketing by this company is not so great. It's the first time ever I hear of EtherStocks. And to think they've already had a pre-sale, and even went live already, there should have been some attempts to spread the word.
Nonetheless, I think this is fantastic game. It keeps you engaged, whether as a building owner or a lessee. As a building owner you can keep buying buildings and profiting from all your businesses. Pretty cool