I have many stayed at the Hilton Frontenac as a Diamond. FYI - the 1BR suites are not as nice as the tower rooms in the main building. When you stay in the tower rooms, they will give you free water, WSJ, etc. If you ask them, they would easily give you a room in the other building with the embassy suite like room, since they are often not at full occupancy. Get to know the front desk, they are pretty nice!

Yeah, I'm not sure what the criteria is about the wine. I have received many bags of M&M's though. Also, you have access to the executive lounge which has continental breakfest.