I havent had a chance to properly use a Hava box yet, but it seems to me that Hava is offering a better product at a cheaper price. This is if course comparing to the current king of TVOIP, Sling. One of the features that I really enjoy is that there top of the line box offers wireless builtin (finally!!!!) which means I dont have to keep a ethernet cable next to my tv (like the current model Slings). Also there is better support for mobile devices, so unlike Sling you wont have to wait a year for yoru handset to get the mobile software (seeing as how Sling is concentrating on BB and Iphone products right now) . I cant wait to test out the new unit and see what kind of results this box can yield. Hit the links for more details.