This Place is perfect, actually a little better than the pictures. All the staff are new, clean and useable. All the amenities mentioned in their explanation are provided. If you need security alarm for keeping precious things at home, it is also provided in this apartment. The free breakfast from the near coffee-house is really helpful when you need your morning time to go and do some works in Istanbul. The location was also good, it had bus stops nearby to Taksim and Sisli places which may be needed for tourists. But metro station is not that much near, which is not that much important that you miss this place.
The Host is very very respectful, Good English Writing and talking, Very quick in responding, very polite and supportive, They have also a reception office near the house which is 24 hour open and they also help the strangers to find out whatever they need. Also Guner was flexible with changes that happened in our plan which was very helpful for us in saving our money.
On the whole I truly recommend this place, Hope everyone else also enjoy.