A couple of titbits:

Row 7&8 are the exit rows in Y on the BMED A320. A tiny amount of extra room, but as row 7 is also the bulkhead you get the fixed armrests and no foot cutouts.

Yerevan can be added to the list of BA ports sans lounge. No refreshment vouchers on offer either. However, There is a nice landside diner called 'Square One' with espresso for 70p!