It was not crowded because it’s too early but if you’re going out tonight at nine, it was too crowded and you have you cannot find any parking place for your car
You can leave all over Turkey and almost all over Europe: Greece, Bulgaria, Ukraine, Germany, etc..
You can have a delicious meal. There is a metro station nearby and a huge new shopping center within walking distance. At the metro station in the shopping center building, there is a currency exchange at a Good rate in a jewelry store.
When buses depart, sellers walk around the salon, offering all sorts of useful little things.
Each bus company has a waiting room, usually also its own toilet and in some places free coffee or tea, all companies have free Internet via WiFi.. Tickets are bought immediately. There is a direct bus from the center to the new Airport.
Very big, spacious! A big plus is 2 steps from the metro! A small minus, if you are a tourist and you don't have an Istanbul transport card yet, then you can't get to the toilet, as far as I understand. However, I remind you in 2 steps of the subway, you can buy a card at the vending machine, top up and return to the WC.