I don't know the BK end at all but I'd say at the EN end you could easily save 30 minutes between minimal delay in the air, less buggering around in the terminal and a shorter trip to the city. Assuming something similar was achieved going the other way you're looking an extra hour or more at the destination. Sure, the terminal needs some work but if you're providing the right service that's not so important - you're not in the terminal long enough to notice
