I've been using them from the beginning, they had some problems and decided to switch the a completely new hardware (checked with the owner), he said that they will be offline for some time until everything is setup again. I never had problems with them, I will switch back as soon as they come online. They were holding a small sum VTC's on my account when they went offline, I was told that those funds are safely stored and will be issued once the pool comes online. I'm not worried.