I have been using TV for a long time, probably around 5 years now. And I can say this, it's one of the tools I still use. And why I like it so much is the speed, and more importantly - it is not only US markets, but nearly every trading market you can think of. Before you read any further, sign up today and join millions of professional traders who use it.
A while back I did a review of this, on how to setup your charts, it's still valid, with some minor improvements from TV: