Great location, tram and bus make a decent combo when getting in and around the Sultanahmet area. Blue mosque, hagia sofia (5 and 10 mins walk) and topkapi palace (15/20 mins walk, 5 mins tram) are all nearby, bosphorus cruise easy to get to, tram then bus as it stops right where the boats board.
Bazaars on different days during the week like the street market near Fatih mosque a few stops away (access from the mosque compound), lots of hustle and bustle, aching feet and hot!, some decent bargains As for the hotel Esve, staff were friendly and had good knowledge about the area, avoid the over priced food places directly around the hotel on price only as most are decent if you fancied it, you could just travel on tram a couple of stops and find reasonably priced better options.
The room was clean, room service and breakfast was decent every morning, a mix if local stuff with tea and scrambled eggs thrown in the mix.