I have had service with iPower for several years now and have endured an increasing number of "server failures", "fires at one of our buildings", "moving our servers", etc. In the past 6 months, I have gone from a monthly email-server outage to almost weekly failures. I get the same excuses time and again: "You're on an old server", "We're having problems with THAT mail server", and so on.
My plan expires in less than two months and I'm already shopping for a more reliable host ... either 1and1 or Powweb have proven to be very dependable for me, so it's time for me to migrate elsewhere.