Yeah, matrixgames does great wargames. All the titles I own from them are great games.
But they are known for clunky interface, but in a way, for what they're trying to do (make a highly detailed game that's easy to learn, hard to master) it's almost required.
Maybe their interface is clunky because the games aren't the typical RTS/FPS type stuff, and it's just a matter of "learning something completely different". For this game, I don't know, haven't played it.
But then again, playing some of their games, I'd do those interfaces a lot different and imho a lot less click-intensive, but just as capable.