Will be using my DL mileage to make a four day sightseeing trip to Saigon in early October. Will be using Korean Air to get to Saigon from Seoul and then Northwest to get to NRT and on to SFO. Question is: Does the SkyTeam have any lounge space at the Saigon Airport where I might hang out? I'm using a 120K Business Class award ticket. Also, will be on Korean SEA-SEL and am wondering about the quality of their Business Class as I've seen very little about it.