LAN is a bit friendlier than that, I would compare it to IB and say it wasn't as much antagonistic as bureaucratic and annoying. They treat F very well but J is an order of magnitude below F. However the plane is well stocked with Pisco sours and sometimes some excellent Chilean wine (the rest of the time it is merely good wine), so while the food is not special the drink is. Helping you forget the ground experience. As an airline I would rate it well below AA (in terms of flight operation) and I would route via AA over LAN even with a detour.