In one word: Great!
Location: right in the lively Taksim area, the apartment belongs to a nicely modern designed building.
Cool and relax bar on the street floor.
To/From IST airport, take the cheap Havatas bus, it gets you near Taksim square, walking distance to Raven suite.
Host: Nuri and his staff are wonderful and genuinely helpful.
I will come back for sure)
Boris