3/3 for suites on recent stays. Booked cheapest standard king room for all:

HR Orlando, 6 nights cash (conference rate): Upgraded at check-in to 1 BR Suite.

Centric Nashville, 2 nights: used cat 1-7 cert for 1 night, cash for 2nd night, upgraded to King Suite in app the morning of check-in. Nice hard product (I liked the record player and records in the room) and friendly service at breakfast, but indifferent front desk staff and breakfast charges that I'm still trying to have removed two weeks after the stay.

HR Toronto: 1 night using cat 1-4 cert, no upgrade in app, but proactively upgraded at check-in to Deluxe City View Suite. Excellent welcome - I got that rare feeling that they actually valued Globalists, instead of just going through the usual script. The room is many years overdue for a renovation, though.