I don't like them too much... not enough realistics to my taste.
and you screenshot is a very good example, the lights on the ground look like the source is few feet above the ground, where it is actually higher. and the limits between lighted area and not lighted area is too sharp...
but they can be a nice addition to some shots...
nice airport, by the way... at the end of the runway continue for 4 miles, the turn left and after 3 miles, park your plane and give me a call, I'll offer you a coffee, or what ever... ;)

vince