Useful chart?
I think so if it had some of the "studies" on it.
I get a similar chart on Power ETrade Pro with the Bollingers, moving averages, etc.
I occasionally trade intra-day using it, but really not very often.
The reason I watch it so closely is I snapshot buy:sell, 10-minute average volume, one-minute volume and high/low every 15 minutes as part of a longer term effort to understand if there's anything useful in predicting movements.
MHO,
Bill