Istanbul's urban transportation is excellent. Everything is clear and convenient, unlike a taxi. I always take a bus from/to the airport. And now there's a subway, too, it turns out.
The buses run according to schedule and are comfortable. You can pay for the ride with the driver's card at the time of boarding or in cash at the ticket office, which is located on the same platform. Cash payment is made only in Turkish companies. Istanbul card ("travel card") It is also suitable for payment.
A convenient and fast way to get to the desired area. At the time of my arrival, the price is 275 rubles to Taksim. It is convenient that the required amount will be transferred to the Istanbul card at the checkout, you do not need to look for a terminal for this.