I tried Minergate a couple of months ago, and it seemed pretty good at first but I mined only once for a couple of hours, and the next day when I tried to log into my account to do again my account was just gone somehow. I tried to reset my password in case that was the problem, but it just said unknown error and its been like that ever since. I'm not saying they're bad, but their website isn't working so good and I hope they fix it.