The extension is easy to install and to configurate. It exactly works like it is discribed, so no surpises. If you read the documation carefully it is easy to get the extension working!
I had a problem and submitted a ticket to the support. They answered me a few hours later and also after I react they answered after a few minuts, thats what I call a professional support. They also fixed the problem with given admin details for me.
I'm happy that I chose this extension.