The staying on Melike's apartment had prons and cons.
First of all, the location was very good, near to all the tourist attractions (as Aya Sofia, Top kapi, the bazzar...). You could walk just 20'. The road was quiet enough (no cars, just working noise). Nearby there were places to eat good and cheap kebab and breakfast.
Also, the communication with Melike was very good. We talked before and during our staying for what we needed. She was answering very quickly.
Now, for the cons, the apartment was not clean enough (for example the floor, the dishes - we could not use either wash them, since there was not a sponge).
It was smaller than we could see from the fotos. It applied the most necessary things, but not in plenty (tools, sheets).
Our responsible attendant did not speak english, so we had a tiny problem there.
For the money that we pay (110-120 euros for 4 nights), it was ok. But we had another idea from the site's fotos, than this that we found there.