The place is perfect.
clean, safe, the same as it looks in the photos, easy check in and out, close to the transportations (buses, metro, ferry, inclined rail way station) close to Isteklal street, Taksim square and Galata tower, the host (Irem) is very helpful)
but ( as most of Istanbul and mediterranean sea cities roads) located in the middle of a hill (90 m up and 200 m down to the main streets) , and also located next to Kasempasa stadium so it may be noisy and crowded (in case the team has game there).
although if i would return back there i will book there again 100%