I would have to start by saying that the housekeeping at this Chantilly Location do an outstanding job of keeping the rooms fresh and completely clean. The toilet and tub were brand new and completely clean, including the fixtures in the eat in kitchen that were in mint condition. The linens and draperies were beautiful and the HD TV had an excellent picture quality. Dulles Airport nearby was a bit noisy but bearable and did not interfere with the quality of my stay. I rated Residence Inn with four stars instead of five because the aweful bed left my back aching all week. My wife and I fought all night over the tiny sheet we shared. The pillows felt like they were filled with feathers and I had to stack about three of them around my head just to get any rest. The AC unit was irritating and hard to adjust the temperature, leaving me to cut off the AC several times. The gym was too small and the temperature in room was set for 76 degrees and I could not get the window open to air it out. With more than three people squeezed in the gym room it felt like a sauna! The breakfast was reasonable but the free dinner was not up to par. The staff were all friendly and helpful Overall my stay was pleasant but the beds and pillows are not good if you have disk or back trouble.