Ra's place was superb. It's central to several attraction spots (Taksim Square, Istiklal Street, Galataport, etc.) and within walking distance to a Tram, metro AND ferry station which you can use to easily get to the beautiful islands around Istanbul. The place is on a hill as it was mentioned in other reviews, but it wasn't at all an issue for us, but do keep that in mind if you have elderly folks with you.