Yeah same here. I have 2 VPSes with them, one is US-based, the other in Europe. The one in Europe works, the one in the US is down. So I guess it's their US nodes that are down, or it's datacenter maintenance, or Berman themselves do any type of work. Either way, they rarely care to explain what's going on.
I might add: good service while it runs, pretty crappy when there's trouble. In my experience though, they've come always back up.