I have used Advanced Carpet and Upholstery Cleaning twice now on two different rental properties. Their service and prices are excellent. The first time I used them it was as a result of the first cleaner I used doing a completely unsatisfactory job which I refused to pay for. So you could say that my standards are high I guess.
Not only was the job done properly (excellently really) they were cheaper than the company that didn't do it properly the first time.