Yeah, Mythos is not the worst! There is another local one Alfa, but it's pretty indistinguishable from Mythos. I prefer to drink local crap ahead of imported crap. Amstel and Heinekin seem to have a strangle hols on Greece!
And yes, have a couple of Metaxa after a meal especially. The 5 star one is best(3 is too rough and 7 is too sweet).