When it comes to a service company, the biggest compliment you can give is that you never have to think about them. Service is provided and you are able to conduct your business without being distracted with issues from the provider. This has been our experience with Tierzero. When the occasional issue does arise, it is dealt with quickly and behind the scenes so that it does not interfere with our day-to-day operations. In fact, typically Tierzero will inform us they have noticed a problem and are addressing the situation and we were never aware of it due to redundancy built into the system. I would recommend Tierzero as a service provider without any reservations.