Nida is a pleasant & a wonderful host . The appartment was perfect and convenient. We just needed a quiet place to rest & were very happy that it was close to Istiklal street as well. Galata tower is just 15 -20 mins walk from the appartment. We did not buy a local sim as we were staying only for 2.5 days. The tips & directions from Nida & the travel card (Istanbulkart) provided by Nida helped us get around . We were quite apprehensive to go out without a internet connection but did not have any trouble getting around because of clear directions from Nida. Nida helped us with the taxi to the airport as well. The appartment was impeccable & we enjoyed Nida's warm hospitality. Thank you Nida! :)
P.S - Maps.me is an app we used to download offline maps. This was useful both in Greece & Istanbul.