Finally I managed to download the demo
About the camera control, I find it not so friendly when you have to move around but it is very good when you select a ship (and all the arrow movement appear) and the view can only be rotated around it, maybe a zoom in and out will help a lot.
I'm having a lot of trouble with the speed of the game. It run too fast for a couple of second then stop, and so on but I have noticed that when you select your ship and all the arrow for the movement appear, if I move the cursor of the mouse on the border of the screen it run at the right speed....