vol analysis on its own may not be helpful, but used in conjunction with bar range (ala wycoff) and delta (bid/ask vol such as marketdelta software), it can be very useful...and is a critical part of my trading in ES...along with PA, and internals and MP.
btw, vol analysis to me is NOT obv, chalkin, or any other canned indicator.
i am referring to bar range + bar volume + actual bid/ask vol + T&S = very helpful
i am sure that this is not case for all, but it is for me......and that is the way i like it.
the more naysayers the better.