There are five lounges at BUD, three in the main area (Skycourt, 2A) and two after passport control (2B):

https://www.bud.hu/en/passengers/sho...d_vip_services

The only one of these that I'd consider rubbish is the Mastercard lounge - very tiny, limited charging ports, and no restroom. The other two 2A lounges are quite good for contract lounges.

The 2B lounges are both pretty respectable as well. They're right next to each other upstairs and there's an outdoor terrace up there as well. Nice view of the tarmac from all of these.