The ability to set up load balancing in just seconds with no need of technical knowledge is quite amazing! I can't find anything that would dislike it so far (but maybe my first try was not very good). We are using this product as part of our RingCentral service offering - we're able to create different types of virtual phones which get their own phone numbers from one or both public IPs provided by us. As soon as someone calls any number inside VPLB they have access to all realt time communications through RTC services such as WhatsApp/Skype etc.