I've never heard of HAVA. I have a Slingbox Pro and LOVE it! Including shipping, I paid about $175. I love being able to watch shows I have recorded, etc., while I am gone. We are leaving on vacation in a few days and with Slingbox Pro we won't come home to a back-log of shows or reach the limit and miss something important. I will be recording at least some of the Olympic events as well as some of our regular shows.