Just flew ex. EZE last night, I had to spend 6 hours landside, it's one giant terminal, A,B,C are all the same building, all the gates enter in exactly the same area. A starts down towards the McDonalds landside and goes down from there. As far as I could tell, you could either check in at A or C, no B check-ins. Lounge access for *A and LATAM are at gate 8/9 and then Amex/AR at gate 15/16ish. AR lounge wasn't anything to write home about, couldn't get into Amex lounge as I left my plat. card at home, and the LATAM lounge was decent, warm soup, finger sandwiches, decent wines. Didn't get to check the *A lounge out as was flying ex. Qatar.