I have just arrived back from Zante on 3rd August and I must say that the airport was fine. You do have to queue 'inside' for an hour or so but I can't see why people have to rush through the checkin procedure? Once through there is a shortage of chairs so you will almost definetly have to spend some of your time sitting on the floor, at least whilst waiting to check in everyone is in the same boat and it isn't as bad as some people suggest so don't let travelling home ruin your holiday. In fact when we flew out from Manchester at 7.20am, when we arrived at the airport we had to queue for 1 hour 15mins before we were checked in as there were so many flights out !!!  In Zante airport the holiday reps tell you which queue to stand in and they are waiting at the front, middle and back of all the queues just in case you get confused in the mayhem so that should really put your mind at rest. One thing that I would say though is make sure you take a drink to the airport, (especially if you have kids) and drink it before you check your bags in. At least that way you won't die of thirst.