Indeed in my car, 7.0 has provided quite an improvement in my Wh/mi, a reduction of about 20-30 Wh/mi average for equivalent weather conditions.
I'm still skeptical, though, as the way they've calculated things tends to change over time and I keep wondering if it's just due to a difference in some calculation, or whether we are truly getting better mileage. I don't have the benefit of a "regular commute" by which I can measure the utilization. Twiddler's anecdote, above, showing 25 mi more on a regular trip is a promising start, now we just need more people who do a "regular" commute to tell us whether they're regularly seeing a higher SOC at the destination on these routes with 7.0 compared to 6.2.
I would like to see Tesla re-run the EPA tests and tell us whether they have changed... that would be also a good determination.