to my experience, all the websites that has been giving profit on bitcoin investments are either scams, which means they are going to run away with all the money they have gathered; or they (at least) seem legit but after a while they announce they were rubbed, hacked or some weird story like that and declare bankruptcy.

in any case the bitcoin investors are left without their bitcoins and there is absolutely nothing they can do to get it back, because of the amounts, anonymity or the distance between (may be in another country).

that is why I always suggest my friends to stay away from any kind of investment plan in bitcoin.