I had contacted the company online, and received a quote the same day. I had then booked the service 4 business days out. There was a crew of two who came; both wore masks, gloves and shoe coverings, and were very respectful of the space.
The physical layout of my home is quite complicated, as it is tall (a stacked townhouse stretched over floors 2-5), so there was some logistical planning of where to park the cleaning vehicle that holds the very long hoses. I have to say that i was impressed that those hoses managed to reach from the car on the street to my house, never mind all the way up to the top floor, but they know what they are doing and it worked perfectly fine.
They took about 2 hours to clean, and during this time cleaned the broadloom across those floors (including 3 stairwells), a Persian rug and an upholstered arm chair. Everything went smoothly. The carpets took about a day to dry completely in some of the stairwells.
I contacted the company a couple days later, because of the type of broadloom and the colour, when it dried, you could still see a stain in one of the areas, which was not visible when it was wet. They responded right away and came again the next day to treat this area specifically. They took great care and were done in 20 min. Everything was super clean afterwards.
The invoice was itemized as per the quote, and the payment was simple (contactless credit card). I would definitely hire them again.