4/21/12 - Used DC Metro. I called the day prior to set up arrival time parking, fuel and ask questions. When I landed a line service rep in a cart directed me to parking where I shut down. I asked about a tie down for 3 nights and fuel. He coordinated with ops and said I should follow him to a tie down and he'd help secure the plane and fuel it as well so I started up and taxied to a spot close to their facility (Triangular shaped building). After helping us tie up the plane he got the fuel truck and had the plane refueled before we were done unloading bags and installing the control lock. The departure day was just as smooth. I didn't need to use their flight planning facilities so cannot comment on those. I asked the ops attendant if she had change for a $10 so I could get some water out of the vending machine when they brought me a bottle of water for myself and 2 passengers. All in all a good experience, nice facility and friendly. Fuel prices are higher than surrounding airports but if you need to get into the DC area it is convenient.