This is one of the funnest games I've played involving space in a modern era setting.
At first glance, the graphics look pretty good, although a little dated for the type of game it is. The earth and moon textures are a little jagged and could use some mip mapping or detail maps added, but this doesn’t take away from the fun.
The graphics are pleasing, the audio is nice and NASA’ish (although the Astronaut voice replies to commands can get a little repetitious), and the concept is completely excellent.
While the game can be confusing to new players due to the rather short tutorial, the game is at first difficult to master. I found it appealing that you actually had to figure out more things than most games, which usually provide step by step details in a 90 page manual.
My final thoughts are that if you are obsessed with NASA, this game will definitely be enjoyable. If you like having your hand held throughout a game then you should probably skip it and stick with a game like Space Colony.
I think more companies should learn from this game and its genre and put it to use making enjoyable space builders based on realistic data.