I am a Luminox fan. I got my 3001 Navy Seal last year and was delighted with it. Recently I traded a few watches with another member ringding for a Luminox 3401 F-117 model. First off let me just say that I highly recommend dealing with Rich(ringding) he is a top class guy and the communication was first class.
Now to the watch. It came in great condition and the tritium glows like fire. The build quality of the watch is unreal, it's built like a tank. The sapphire crystal is really nice and the AR coating is effective. Mine came on a black Zulu which is extremely comfortable and complements the watch. I really like military type watches and like things which are functional rather than flashy. With this in mind I cannot fault this watch, it really is top class. It seems to be the perfect balance between strong build but not too big to be a nuisance. I prefer the older style Luminox watches i.e. the 3000,3400,3100 series shape. I'm not so fond of the new style case shape.
The only problem I have now is deciding which to wear, my 3001 or my 3401. Perhaps I'll wear them both haha.