flew Malev, FRA - BUD - OPI, OPI - BUD - VCE, VCE-BUD- PRA as QF WP, no upgrades but I found the planes, service etc to be excellent. Amazing, they serviced a refreshment, then tea/coffee all within an hour on 737 without a fuss and yet here in aussie QF can't do both !!!
Totally recommend MALEV for internal europe flights.