I've been using bitconnect for a couple weeks and am over the moon happy with the profits.  They are (apparently) the 3rd largest holders of bitcoin in the world.  That means a lot.
Their business model is so good in fact, that people want to shut them down and everyone else is trying to copy their model.  I doubt they're going to shut down anytime soon as they're making money like crazy.  Not sure about the bitconnect x coin but they are trying to institute a trading platform and I will (attempt to) buy a couple coins since bitconnect gives a direct link to this new platform through my bitconnect account and I have been trying to sign up with other platforms that won't let me.  Any of these interest accounts that promise to pay dividends in bitcoin would be scams but bitconnect doesn't do that, instead they make even more money through transers into bitconnect coins then to bitcoin. Try to ignore the FUD dealers and go with your gut instincts.