Compared to D&D this system has far fewer stats and rules but much more opportunity for strategy. The fatigue mechanic works well on limiting the players' options. Combat movement is a little complicated as is turn sequence, but we refined them as we went. When playing again, things should go quite smoothly.
The remaining issues are balance- the point system I used for creating characters needs some tweaking, and speed- our battle took over 2 hours. I'd like to get that down to around 45 minutes. Once the combat system is fully fleshed out we can proceed to populate the full tile-based board game. Plenty of work, but lots of fun.