BFC appeared less than half a year, this is pretty amazing tbh.
https://twitter.com/BitfreeCash/status/1211849924435791872
But the current price is close to $10, and it requires mortgage to obtain full rewards.
Not many miners could afford the huge initial investment, but consider its high revenue, maybe will attract more and more investors as they offer cooperation platform where miners rent coin from holders, that's pretty innovative.
https://www.f2pool.com/