Do not hesitate to book if you are on a business trip to the area. I have been to several fairs in Tuyap Expo Center and stayed at several hotels. They were either expensive or lousy hotels. And don't get the idea that by paying much you get better service.
Dedeman is a very well known hotel chain in Turkey (not so much by outsiders), this specific one is new in the chain. The new blood brought quality to the area, will book again in my next visit.
Ask for upper levels so you can have a great sea view, also try fine dine roof restaurant. Fantastic view and great food. If you travel there in summer, the public beach is 50 meters walk, but it can get very crowded. Be sure to have a walk in Büyükçekmece Bay, sunset is exceptional. Several shopping malls, one historic bridge made by "Mimar Sinan", an aquapark with nice rides, some fish restaurants by the bay and some restaurants that serve local food from different areas of Turkey is all to see. I have heard of a... more