I went skiing with a group of friends and we found the two bedroom suite arrangements to be a good value for staying with multiple people. The suite is very spacious, good size kitchen, dining, and living area, quality finishes in the rooms and hallways and comfortable beds. One downside is the VERY thin walls and ease of which you could hear other people talking and doing "other stuff" in adjoining rooms/suites. I swear that the ventilation systems are connected and voices from the next bedroom in the suite next door were projected through into my bathroom.
There were a few more minor irksome things, also. The in room coffee service didn't include any creamer or sugar (so we thought at first since it wasn't anywhere near the coffee) and then in one of the other rooms it was found buried way back in a kitchen drawer. You'd think it would be with the paper cups and stir sticks next to the machine! :)
The other somewhat unpleasant thing is that if you're in one of the other two buildings, all circled around the main driveway and courtyard that has the pool and hot tubs, there is no convenient way to get from the checkin lobby in the main building to the building your room is in. So you have to back out into the cold and snow and cross the driveway circle and fuss with the key card to get in the building even before you even go down the potentially long hallway to your room. Each morning to go have breakfast in the restaurant in the main building was the same outside trek. I suppose this is typical of larger multi-building resort facilities. We did learn later that you could possibly do it by going all the way to the basement garage level and stumble around underground to find the elevator back up into the main building.
The service was good as you would expect from a Hyatt, though at times the servers in the restaurant were dressed a tad more informally and without any identifiable uniform other than their name tag (unlike the desk and bell staff). They were friendly and engaging though. Overall a good experience and a recommended place to stay if skiing the Canyons resort or going anywhere in nearby Park City.