This is the worst rental experience I have ever had! We booked a two-bedroom two-bath apartment in Paris with air conditioning. We were shocked when we walked in and found that the two bathrooms were in a dank basement, two floors down from the bedrooms, which were up a very narrow steep flight of stairs. Nothing in the description of the apartment gave any indication that the bathrooms were nowhere near the bedrooms. It was 94 degrees, and the air-conditioning did not work. I called Check My Guest (CMG) and Belvilla repeatedly, but nothing was done to fix the air conditioning during our four-night stay. We were roasting; it was too hot to sleep. We had nothing but problems with CMG. For example, when I received the access information for the apartment, it just gave a street address. I called CMG before we arrived to ask if we needed an access code. I was told we did not, but when we arrived at the pick-up address, we could not retrieve the key without a code. Although I had paid an additional fee for early access to the apartment, we were stuck at the store on hold with CMG while they tried to find the code. When we finally got the access code, we were provided with only one key. I asked for an additional key, as there were four of us going separate ways. CMG said they would get back to me, but we never got any further response or an additional key. Weeks before we arrived, I had extended our reservation for one night. I was concerned we might be charged for an extra cleaning fee, but Belvilla assured me we would not. Belvilla/CMG, however, booked the extra night as a separate reservation--they wer apparently unable or unwilling to consolidate the reservations. The day before we were to check out, a cleaning person came to the apartment while we were out. She pulled apart the pull-out sofa in the small living room (which we had not used) and left the pillows and headboard scattered, along with a pile of cleaning supplies. I again called CMG. They said they could only refund the extra (improper) cleaning charge if I provided my personal banking details, which didn't make any sense, given that I had paid for the apartment with a credit card. Then, again, before we had checked out, I got an email from our "hospitality manager" at CMG, hoping we'd had a great stay and asking me to fill out a survey; the "hospitality manager" apparently had no record of my numerous calls. I responded by email, explaining all of the problems we had at the apartment, but receive