It's not that bad. Yes, while there is a general rush to board the aircraft, it is not as third-world as it seems. There isn't a whole of lot of queueing, so be prepared. But, most people don't seem to drag as much as they can on board either, so there isn't a large fight for overhead space. The cabin attendants are pretty decent (with the exception perhaps of the MU
ones), and the planes are relatively clean (again, with the exception perhaps of the MU
All in all, it's not as uncivilized as it seems. Have a safe flight!