If the door of the room are in real wood, they are not noise-proof at all.
You need to pay 10€ to use the sauna and other activities...
The surroudings are only works in the street. A lot of new hotels are undder construction.
First of all this hotel is magnificent. It was a little hard to find at first, but I found it after taking the taxi from the train station. The best thing to do is to take the tram from the Airport to downtown Istanbul. The hotel is very modern and the rooms were very nice. My room was big enough for 3 people eventhough I was a single traveler. On the downside you really dont have any view to see from unless your on the roof. The breakfast was average and not much meat selection, but overall enough breads, yougurt, cofee, and tea to get your day started. The hotel is in a quiet area of the city and away from it all at the end of exploring the city.