I'd like to include Esri's aerial images in QGIS maps. I am using QGIS 2.18.3
I have discovered the ArcGIS REST API Connector (beta) http://giswiki.hsr.ch/ArcGIS_REST_API_Connector_QGIS_Plugin
However, I can't work out what URL to place in the box that the plugin launches. The closest I can get is from this page http://services.arcgisonline.com/arcgis/rest/services/World_Imagery/MapServer/3 there is a link in the top right page for 'API reference' http://services.arcgisonline.com/arcgis/sdk/rest/index.html#//02ss0000005t000000
but this page doesn't make it clear what URL to point to.