A friend of mine went there on the B767. Not very good for this A/C type as these pilots are based in Seoul. Also according to his contract you wait 6 months before you start accumulating any leave! Money not bad but the system is not flexible when it comes to any changes of roster you may want. Might be better for 777/744 but it would be best to have a good look at the contract first. Korean is the better bet.
Good luck