Ilhan appartment is great value for money, small appartment with a bedroom and a small kitchen, with everything you need : blow dryer, washing machine, TV, iron, refrigerator,dish washing machine,AC,hot water...and when we had a problem with the iron stand,we contacted Ilhan and he sent us a new one quickly.
it is also located 15min away from taksim by foot,10min from galata tower
dowsides : wall very thin we could hear our neighbors talking,no elevator but the guys at the reception helped us with our bags we were on the second floor.
and when our stay ended we left our baggage at the reception and Ilhan arranged us a private car for 175tl for airport shuttle, but i recommend using havaist for istanbul airport or havabus for saw airport for 18tl per person from taksim.