One of the two greatest advantages of DNP is its interface and the uptime. First, the interface of the DNP can be a bit trickier than the one in Plesk, but mastering it means more control over your account and the loading time to it is way shorter than the one of the Plesk. The other thing the uptime is probably the strongest and best advantage of the DNP over Plesk. This has been made possible due to the clustering technology that DNP uses and Plesk doesn’t. As an end result you get 100% higher (faster) uptime, which is a part of one of the most important features of a server, and that is reliability.