I stayed here my honeymoon and the property was better than I thought after seeing the mixed reviews on yelp. It was actually a great alternative to the typical casino rooms that I have stayed in the past. No more going through a crowded casino and getting lost to find the elevators to your room. Since all Marriott properties are non-smoking, it was relieving to actually breathe fresh air in a hotel. The staff at the front desk was friendly and guaranteed my requests of a corner room on a high floor. The one bedroom villa was amazing. My wife and I were truly excited when we first opened the door. There was a full service kitchen on the left and a washer/dryer behind a closet. Straight across were the dining room and the living room behind it. To the right was the bedroom and bathroom. The bathroom was so huge that it was actually bigger than some of the Vegas rooms we stayed in.
Since your villa is equipped with a refrigerator and full service kitchen, you should take advantage of the shuttle that runs from Saturday - Tuesday. They will take you to the Vons grocery store, so you can stock up on groceries and anything your heart desires. Of course, we overstocked ourselves because we mostly ate out. Nonetheless, this is a great way to save money and spend it elsewhere. There is also a daily shuttle that runs over to the Fashion Show Mall near the Wynn.
Depending on how you are, staying at the Marriott Chateau may or may not be the place to stay at. This is not the place for the younger crowd as the majority of the people who stay here are older adults and senior citizens. As for the construction complaints that I read on yelp, I did not hear any whatsoever. I guess it depends which location you are in.
Overall, this place exceeded my expectations. The rooms are spacious, the staff was friendly, the shuttle was convenient as well as the location. It's roughly about a $10 cab ride from the airport. You are just 1/2 block away from the Strip and you could walk through the Miracle Mile Shops to avoid the heat. Highly recommended for long term stays.