It is an easy to install and configure the product. The product is web-distributed and can be purchased by using PayPal service.
Substituting existing commercial tools that are too expensive and ill designed for this task. Existing RRD frontends lack essential features such as user profiles, simple configuration model, customizable GUI, performance, reports etc..
Percival product is a small, open source based, subset of Lancelot Monitoring Framework. Percivalis a Network Monitoring and Capacity Planning front-end to the excellent RRDtoolsoftware destined for a very small networks.
It is an easy to install and configure the product.