Barbaros place is really good, don’t get me wrong but I’ll suggest the apartment only if the guest’s are going to sleep on the bed, as we where 3 one of us had to sleep on the couch; this couch is really big it suits 2 persons laying straight easily but it’s rough way too rough to sleep in, the house has a lot of amenities like air conditioning, a lot of movies to watch and Sports channels, and it’s really well located to go to the hot spots of Istanbul, as I said I would suggest only if you’re 2 guests and are willing to sleep together!
Barbaros is awesome and will give you a lot of tips and will be available for everything you need!