diff --git a/README.md b/README.md
index 345afe00..d9eb07f7 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,24 @@
 Collect your Unifi Controller Data and send it to an InfluxDB instance.
 Grafana dashboards included. Updated 2019.
 
+## Description
+
+Ubiquiti makes networking devices like switches, gateways (routers) and wireless
+access points. They have a line of equipment named UniFi that uses a controller
+to keep stats and make it easy to configure the network devices. This controller
+can be installed on Windows, macOS and Linux. Ubiquiti also provides a dedicated
+hardware devices called a CloudKey that runs the controller software.
+
+Unifi-Poller is a smaller application that runs on macOS, Linux or Docker. It
+polls your controller every 30 seconds for metric data and stores that data in
+an Influx Database. A small setup with 2 APs, 1 switch, 1 gateway and 40 clients
+produces nearly 3000 fields (metrics).
+
+This application requires your controller to be running all the time. If you run
+a Unifi Controller, there's no excuse not to install Influx, Grafana and this app.
+You'll have a plethora of data at your fingertips and the ability to craft custom
+graphs to slice the data any way you choose. Good luck!
+
 ## Installation
 
 [See the Wiki!](https://github.com/davidnewhall/unifi-poller/wiki/Installation)