Earplugs and sleeping tablets required
Second and last Hyatt hotel ever. If the guys at Hyatt dare selling such a low quality service, I don't even want to take the risk and try another Hyatt resort.
We've had 6 never ending nights in a "deluxe" room.
And for the first time ever, we've had to use sleeping tablets and earplugs in a resort.
Make no mistake, I have been living in huge and noisy cities, travelled through noisy Manhattan, Las Vegas strip or Paris.
But never, never, ever experienced such a noisy hotel. 
So no, it is is not a 4 stars resort. Actually, It is not even a hotel :
The main thing man expects from a hotel is the ability to have a decent rest. This is what hotels have tried to achieve for centuries in the western world. This is their reason to be.
Well, there, at Hyatt, walls are so thin that you can hear you neighbors having sex. 
But wait, not only can you hear their voices. You can even hear the noise of their skins.
Insane. Family resort they say. I don't know what kind of families. 
However, make sure you'll also hear every single car, noisy chopper or motorcycle, plane, seal. Half a mile around.The power of thin walls and windows that is. 
Poor isolation is such a waste of energy. But at Hyatt, they're going green anyway : they don't clean the towels unless necessary. 
Also, they don't take 'em away either. So you can leave a dirty towel on the ground. Well. It stays on the ground!
Ecology they say. 
Furnitures are exhausted. Mattress needs to be replaced. Cheap pillows. Pool is crowded. 
Front desk agent forgot to smile during check in process (John, a smile is so unexpensive you know). 
Fitness center is roughly 500 square feet big.
Also, the guys there will charge you for about anything. You'd almost expect them to charge you for flushing the toilets. 
Do not trust them and be aware of their tricks. First day, we used the valet service ($25 a night).
Second day : nothing and parked our car in the street. 
Well, Hyatt charged us a $20 selfpark night. They never gave us the ticket that comes along with selfpark and even tho' we've complained about it, they've never removed the charge (nor gave us the ticket by the way). 
So pathethic, it was almost getting funny.
The next days we returned to the valet service. This time they immediately charged the expected $25 (mistakes only happen in a certain way at Hyatt).
One day, we've left the privacy tag on our door. When we left our room, at 10 am, we took it away. When we returned, at 2pm, we found a small paper under our door. It said : due to your request for privacy, the room hasn't been made. 
No comment. Thanks Hyatt. 
At 1pm, Einsteins bagels had almost nothing left. No salads, no bakeries.
The only good point was the Red Marlin restaurant. 
The list goes on and on. 
What a waste of vacations time ... We've had such a good time at the Scottsdale's Hyatt regency. 
I wouldn't recommend this place to someone I like or even dislike.