What the manual didn't tell me, but the tutorial suggested I do, is how to build units. I figured it out fairly quickly, but was annoyed to be left on my own. The graphics in the game are fairly pleasing. I found some of the buttons for the various modes were not intuitive. Maybe I was a little unclear on what I was to do.
Movement can be a little annoying.
Almost everything in the game can be done with the mouse except moving around the map. Here you have to use the keyboard arrows. The first thing I did was to turn off the music. I think the zooming sound effect you hear every time you click on a structure would, in time, be grating. Although long term strategic games are not high on my list of favorite computer games, in one way, Fallen Haven, with its limited scope, makes the idea of a strategic game more appealing for me.