Berna's place was cute, cozy and comfortable. Big windows make the apartment feel cheery and bright. The sofa and the bed are both really comfortable. The shower is strong and hot. We were glad to have the washer after two weeks of traveling. An added plus was that Berna left an ample amount of laundry detergent so that we didn't have to go searching for the correct soap. We also appreciated that there was a lot of space for our things. The WiFi, TV and other appliances worked well.
The inside of the apartment is exactly as the pictures look. The two small balconies were a plus, but weren't decorated like they are in the pictures. This could have been because we were there in colder weather. We did use the balconies nevertheless. It is a plus to be able to step outside to check on the weather since the apartment is four floors up a winding staircase.
The stairs as well as the steep street are something to consider if you have mobility issues. We are pretty fit and like the climbing, but even so taking bags up the stairs isn't easy. On the other hand, all that climbing might give you an excuse to eat an extra borek at the friendly delicious borek shop down the street.
We plan on being in Istanbul again in the next year or two and would definitely stay in this cozy, comfortable place again.