Just completed a four day, 5 night stay at the new W Istanbul. Overall nice hotel, nice location. Slightly small room, but much larger than the W in NYC that I stayed at once.

Best features: Location and the comfort of the heavenly bed and the heavenly pillows.

Some "unusual" features in our "upgraded room" (from a standard "wonderful" room to something that might have been called a "spendific" room).
-- The bathroom is part of the bedroom with all the key parts (shower, toilet, sink) build in like closets. Strange design. Room only had one sink which was inconvenient -- should have two.
-- LCD TV is behind a glass panel which looks nice but muffles the sound so you end up turning it too loud.
-- There was a nice patio connected to my room, but it had a separate key that required you to call security to lock or unlock it. Strange as this is a private patio.
-- The "rain forest" shower leaked into the bathroom, but there were plenty of nice thick towels to mop it up.

Not sure there were many guests there yet. Pretty dead in lounge and bar. Saturday night had more people. Young, well dressed group. Black and white attire was appropriate.

Overall nice place. Would definitely stay there again.