Not up to Marriott Standards
Positives: very professional, cheerful check in service and great breakfast service in Marsten's the next morning (manager very courteous and checked on us along with great server during buffet); since the club level lounge is being renovated, we were given free breakfast buffet coupons and a free appetizer coupon. Comfortable bed in room. Great location close to US Airways Center and Chase Field. Restaurants/bars within walking distance.
Negatives: late night lobby bar drinks and food at a table---I had to ask twice for our check by walking up to the bar. The first time, the female server said "Just a minute, maam. Sorry.". She seemed very flustered, even though the bar was not crowded. So I waited another 10 minutes at our table while she proceeded to check on about 6 other customers and served 5 cocktails. Seems like they cater to airline personnel who stay at the hotel regularly? I went up to the bar a second time and said "I just want to charge this to the room." She finally, grudgingly gave me the bill. And there were 3 people working at the bar area! Excuse me-----and this is a Renaissance?
Also, again since the club level lounge was being renovated, there is a "Quiet Lounge" on the 18th floor with snacks and drinks. The sign outside said "Have you heard? The Quiet Lounge is open Sunday at 5:00 PM to Friday at 12:00 PM." We wanted some water at 10:00 PM on a Wednesday after returning from a concert, and the room was locked and dark. My husband called the front desk, and was rudely told that the Quiet Room closes at 10:00 PM as shown on all signs. 
Lastly, hallways smelled of cigarette smoke and there was mildew on the walls.