Although the way is a little difficult, it is a very nice place. It's not good to have a parking fee at the entrance, I hope the entrance will be free.
Nice, clean, shower, toilets, shop, restaurants. The prices are reasonable. The cost of mooring in two days is 100 euros....
The local agent broke in 800 euros for entry and exit to Turkey... But there is an option to bypass everything yourself or stupidly protransit the Bosphorus... There is a gas station at the Marina entrance, you can only go to it...