Kualo has stated on here that they are having some issues that stem from a hardware problem. Every host has problems once in a blue. It's not really fair to label them unreliable unless they don't bother to fix what's wrong in a timely fashion.
I don't mean any harm to Kualo. It is purely my bad luck. Because I have been with my previous hosting company with no incident for the past 1 year.
But when I convince my client to switch to Kualo and started the conversion of all my accounts for just a month the email server went down. The timing could not been worst. I got a lot of screaming and yelling for a seemingly bad introduction and bad decision. And who can I blame but my bad luck for signing up at the wrong moment.