If you are satisfied with SD then you will be quite pleased with HD.
Bandwidth usage is predicated on the level of compression and how much programming you sling. The decoder in the latest Sling Pro is much more efficient than earlier Slings so take your current SD usage and add 25 to 50%
In a thread about the Pro HD version (or whatever Sling calls it, I forget), a couple of years ago I produced some bit rate numbers if you wish to search the forum.
As far as internet connection goes, the bottleneck is your upload speed. That depends on your location and your package. The best way is to use Speedtest to check your upload speeds.
Bandwidth usage is predicated on the level of compression and how much programming you sling. The decoder in the latest Sling Pro is much more efficient than earlier Slings so take your current SD usage and add 25 to 50%
In a thread about the Pro HD version (or whatever Sling calls it, I forget), a couple of years ago I produced some bit rate numbers if you wish to search the forum.
As far as internet connection goes, the bottleneck is your upload speed. That depends on your location and your package. The best way is to use Speedtest to check your upload speeds.