Our trip was in January, 2019. I just went to the first clerk available, handed him the ID/$20/visa card and said “Do you have any complimentary room upgrades available?”. He upgraded us to a Strip view room on the 23rd floor of the South Tower and sent a refrigerator up to the room.
I went up to the first available clerk and had my $20 between my credit card and driver’s license. She immediately said, “You want a suite?” She gave me a choice and I took a Junior Suite with a strip view. I really enjoyed the room.
Midweek, 2 night stay during a slow time of the year. Upgraded to a mini suite that was about 2/3 bigger than a standard room. Great room with a wet bar, seating area, walk-in closet. Still the basic (small) bathroom. View was of city with strip in the distance–didn’t want a view of Freemont Street, thought there might be noise late into the night.