Despite this being a first time with unfamiliar rules, the game rocked along rapidly - so much so that we got through the whole scenario twice in two and a half hours. (Two British victories, as it happened.)
This being a playtest, plenty of discussion points came up and suggestions for changes. Bob and I will mull these over and no doubt the rules will evolve a fair bit yet before reaching some kind of stable final version, but it's looking very promising. A WWII game may well feature in next year's Bash Day BBB convention (Oxford UK, Saturday 18 February 2017, if you're interested).
Check out Bob's website for the Trig Capuzzo scenario and many other excellent historical scenarios for WWII and some more modern tank battles.