Though I have not tested the rules in actual game play yet, I did get a very good feeling from the rules themselves, fairly easy and quite adaptive and playable. I think they would work fine and be fun to use.
I have to admit though, that I'm not really a friend of Mass combat situations in actual RPG gaming, that I reserve for combat orientated games like old school HeroQuest or tabletops like BattleTech or ACTA.