Floor tiles throughout house were "cleaned" by their technician. Whilst the tiles look a bit cleaner, the grout was barely cleaned at all. In high traffic areas like the kitchen, I could not even see where he said he had cleaned. He said that fat etc had soaked into the tiles and was not possible to remove. I thought that this was the whole point of getting the tiles steam cleaned. I had gotten another quote from a specialised tile cleaner who was much more expensive. I wish I had used them instead and had the job done properly. To top it off, after the technician had left, I saw that he had emptied his water tank on the front lawn, just outside my front door and all of the dirt and fluff which he had cleaned from the house was now spread over our front path. Definitely not worth the money.
Triple 8 later offered for me to get another company to clean the tiles with before and after photos and if there was significant difference, they would refund my money. I did not take them up on this as I did not want to risk paying for the tiles to be cleaned twice.
Triple 8 may be a good cleaning company overall, but I don't believe that they have the necessary equipment to clean grout in floor tiles to the standard that people will be expecting.

Approximate cost: $400