I like that this service is constantly improving, it's easy to use for customers with no technical knowledge at all! It allows me as an operator of another phone provider in Chile (Claro) access via web without having any special hardware or software required from my side; which makes sense because we are using VoIP services nowadays instead traditional lines so less capital investment would be needed if you have already invested into PSTN infrastructure such us T1s/E-mail servers etc... I like