I gave it a 5.
This was not so much because of great personal animosity toward the designers of the module, but more because I'm new to ASL, so it doesn't really expand my horizons. I mean, sure, 16 scenarios, but I already have 600+ scenarios which I've never played. I mean, sure, North Koreans and jets and whatnot, but I have yet to play any amphibious landings or DTO or caves or bocage, etc, etc, so the new stuff that Korea adds is a drop in the bucket of WWII stuff that I, personally, haven't experienced yet.
However, I do have the collector's instinct (alas?) so I'm sure I'll get it and enjoy sorting the counters and whatnot. And my guess is that I will have fun playing the (daytime) scenarios, but by the time I get around to them I won't have the excitement for it that the more experienced players do.