SALAM,
islamabad has just warmed up and there is a need to use AC in the day time so i have been using cultus AC from last 2,3 days.
I do agree with you to some extent that AC only feels better if you have vents towards you.
but after 5-10 mins of its full blower operation the car does cool down and you can move the vents anywhere and the car still maintains its chilly temprature.
i am not sure but still on next visit to dealership i will get the gas of cooling system checked.