Bitcoins have three useful qualities in a currency, according to The Economist in January 2015: they are "hard to earn, limited in supply and easy to verify". Economists define money as a store of value, a medium of exchange and a unit of account, and agree that bitcoin has some way to go to meet all these criteria.
Well! I will accept this to be through for now because earning bitcoin the way I do, may not be as difficult as going to office working with all energy for hours. With bitcoin I work to earn anywhere in my house without any boss, but you know we still have our online managers to report to. The store of value is real too. Above all this is a digital currency where you handle your wallet yourself. Bitcoin is on no doubt good for the economy because the world is going digital and bitcoin is solving some economical/financial part of it.