I am currently playing Ligny 1815. It is the third game in the Eagles of France series (after Fallen Eagles (Waterloo) and Rising Eagles (Austerlitz)), all designed by Walter Vejdovsky, and published by Hexasim. Turns are 1 hour, hexes are about 200 m, and units are regiment sized with each strength point representing 100 combatants.
I played the first in the series long enough to have a good grasp of the rules, but I needed to pay attention to the tweaks to the system that extended playing has brought about. As usual, I’m supplementing the gaming with some reading on the topic to refresh my knowledge and enhance the experience. Should be good fun.