For regular games velo was not visible. I think I recall them putting an overlay on for the championship game that had velo. Overall it was very frustrating, but better than nothing for the family. I gave my username and password out to several family members who were able to watch.... when it wasn't frozen.
Here are a couple shots of the 2 main camera angles every field has. As GK noted, they have more cameras, they just don't use them all at the same time.