I take few flight trips every year with family, like four or five. So unlimited lounge access will good for me and add on cards. Each lounge cost 1500 approx, so annual fees is recoverable in ETERNA with few lounge visits. So far I didn't got college canteen crowd and hostel mess food in big city airport lounges. Paytm BOGO offer is also goodIf MCC eligible 3.75% otherwise 0.375% (drastic reduce). I don't recommend unless you want unlimited lounge which also depends on airports btw.