Location is king!
I'll split the review in two parts for everyone's convenience
Pros
The location - it cant get better than this property. Located about 5 minutes from Taksim Square and right behind Istiklal Street. These are the two areas you'll be visiting a lot if you're in this part of town. Shops, ATMs, great cafes and public transport (trust me, the metro is one of the best in the world) are all within a stone's throw. To top it all the host is a very decent bloke, he met us, checked us in early and even carried our rather heavy suitcase through the treachrous flight of stairs, so that was really nice of
Cons
The property - this is a backpacker's haven; so you book cheap and you get cheap. The room was terribly small for two people and we were right below the terrace; the stairwell was extremely narrow which you couldnt help in that area so climbing and going down (with heavy luggage) is a nightmare; come to think of fire (i dont think the place is compliant), you pretty much have a chance of being in an accident
Cleanliness - torn bed spreads, hair on the bedroom floor, no toilet paper and no blankets, pretty much summarises the pricing quotient. We were given a bed cover as a blanket and a roll of toilet paper but that's it. No room cleaning ensured in the two days we lived there.
Pricing - we were booked here owing to the cancellation of our previous acco in Istanbul (our superhost was out of town hence the cancellation) but i'd rather think the pricing wasn't appropriate for the acco and its service. Also, the room was more for a single person I should think.
However, do stay here if you'd want to live around Taksim Square and experience it's nightlife, busyness and the location. Also, this isn't a B&B, just a hotel offering rooms.