I had thought the booking included breakfast, and one of the night staff assured us that it did, however when we went to check out in the morning the staff said we needed to pay. It was only 150 Pesos, so about AUD $15, for 2, so that was a bargain in itself.
If others are heading to Mexico City, find time to stay longer, everything is so cheap there. Leave home with an empty bag and fill it at one of the thousand road side market stalls.