I've played four games using these rules now and, whilst simple, are fun and because of the uncertain nature of the "die selection" mechanism (I use coloured counters which work better if you ask me!) and the purple "die" of death, has the feel of a battle where the action intensifies when the units are near each other (because the general will give them orders in preference to the more remote units) whilst the reserves / further troops stand around doing nothing! The random events are perhaps just a tad too random and I've been toying with using modifiers depending on situational standing (the lower values tending towards negative results - including running away! whilst the higher values are beneficial). they do give the feel of an ECW set of battles where the units are pretty raw and I had one battle where almost the entire reserve of royalist troops ran off without even seeing the enemy let alone being shot at by them! This is rare though....it's just how the dice gods decreed! Also note that this "random" order of selection of units does also mean that it's very easy to solo.
Also note that after just a few turns you can play these rules without the book and almost even without the reference sheets! (See
http://www.helion.co.uk/playsheet.pdf for these).
Itchy - did you get to give these a go? What was your impression of them?