Me and my friend stayed at Yasar's apartment in december 2013,he was very helpful in trying to help us when we needed anything.
Make sure you pack light as the apartment is on the 4th floor of an old apartment with long stairs.
There is nearby high school which at times might get a bit too loud but since we had ear plugs it did not effect us or our sleep that much.
The TV had some minor problems but he was very fast in trying to solve the matter.
I would certainly suggest this clearly simple two bedroom apartment to anyone who is looking for a central place around Taksim and who is on a budget and do not have high expectations.
Yasar was kind enough to help us with our luggage both when we were checking in and checking out.
I would stay here again when i needed a simplistic, budget accommodation.
Thanks for everything and being a kind host Yasar.