Miserable experience due to horrid nightclub crowd...
I am not the W Hollywood's typical demographic in that I am an adult who thinks and is considerate of my fellow human beings. The crowd that this place attracts on weekends is simply disgraceful. Rich, spoiled, bratty, obnoxious and semi-literate, ill-mannered and loud. I stayed here due to Starwood loyalty and its location close to where I needed to be for work. I will not make that mistake again. 
I checked in on a Saturday afternoon in late April. The woman running the valet ($35 a night? Come on!) was harried, rude and a bad listener. Simply put, her attitude just sucked. Check-in took much longer than it should have - sweet women working at the desk, but I found them somewhat clueless. I will say that the concierge Zachary was terrific. He exudes positive energy and gave me some great restaurant suggestions and other LA tips.
The room was actually nice. Great bed, beautiful bathroom. But at 2:00AM on both Saturday and Sunday nights I was awakened out of a deep sleep by the animals leaving the nightclub and/or lobby when they closed. I cannot believe I am the only one to whom this happened. I complained the second time and to the manager's credit they comped me more than a few SPG points, but I did not get back to sleep for hours. The loud and persistent sex noises coming from an adjoining room did not help matters much. He admitted to me that this is an ongoing problem at this hotel. 
The owner needs to make a decision - market it to grown-ups, or to the party kids, but NOT BOTH. No wonder they can't sell the attached condos...who would subject themselves to this BS week in and week out? 
One of the worst hotel experiences I have had. The W South Beach in Miami is fun and yet manages to remain a haven for grown-ups. Go there instead.