We just spent 5 nights, 4 days at Sandos Cancun and we had a great experience. The service here was excellent. We ate at every restaurant and had great waiters at each. The service by the pool was also top notch, especially Ivan, who we were fortunate to have 2 of our 4 days serving us at either the pool or beach. Also, our cook Erick at the Teppanyaki restaurant was funny, charming, and entertaining all while preparing a fantastic meal! We worked out a couple of days the gym was very nice and had every machine you would need.
What really made this visit go from very good to excellent was the exceptional, above and beyond service for friends of ours who weren't even guests of the hotel. We had two friends come meet us for drinks one night in the lounge (a great chill spot by the way). They stayed for a couple of drinks and took a cab back to their hotel. We found out via facebook that our friend had lost her cell phone. We informed the staff, who searched the entire hotel and found nothing. They then dug up security footage from the night before, found the cab's license plate that drove our friends to their hotel, called the cab company and they actually had our friends phone! Our friends were able to retrieve their cell phone before returning to the States.