Only thing I don't like about the online check-in system is that the whole seating is ruined from the beggining of the check-in at the airport. There are plenty of passangers that the system allocate B&C or D&E leaving like 20 window seats on their own. Add to that 33A and 33F due to 33BCDE being legroom seats and rows 1 to 8 and 14A and F being locked as they also are legroom seats. I've counted 29 seats all on their own due to this and in most cases there is not even possible to sit a family of 6 all on the same row. You can imagine what it is to allocate seats as close as possible on full flights..