2-2 config as was previously said. Quite pleasant. Service ; washbags available ( usually on request) lunch/dinner service 3 course affair akin to mainline, beverage service before landing....atleast this was the drill 5 months ago when i flew the route..
I flew their A320, well not A321, in C-Cl in April from London to Almaty, routing via Yekaterinburg. One of my most pleasant inflight experiences ever. Cradle seats, beautiful meals and many "small things" like decoration of the cutlery etc that caught my eye. You will definitely like it.