That's great feedback, thanks. The game started out life as a traditional exploratory retro style isometric game, so mouse control was never even considered. The menus evolved over time, but I always had the menu system from the old 8-bit Magic Knight games in mind, I just loved how they worked. They were cumbersome at first, but over time they became intuitive. As I've developed the menus, they've become intuitive for me straight away, but as with many aspects of a game, that leaves me unable to judge how it will feel to a new player. Your feedback has planted a seed.
That said, I'm not sure where I'm taking the project yet, or even if it will turn into a full game. This short demo has taken a lot of time, and as I'm just a hobby game dev, that time is limited so it comes down to whether or not I want to spend the next few years working on it.
Anyway, thanks again, appreciate it. ;o)