The URL filtering and handling should be enhanced because it doesn't support all languages. I believe that this would be easy to enhance in the future.
I've not been able to use more than two domains in the back end. I like to view logs for the different domains. If I add any other domain I'm not able to get a proper cPanel for that domain. I am talking about the login factors. I'm not able to see logs for different domains in a different Window. Basically, it's an issue in the login process.