My first time at a DoubleTree-- loved the warm and yummy chocolate cookie given at check-in (much appreciated after a long flight)! I had an overnight layover at Dulles after 20+ hours of flying and was looking for a couple hours of rest before the next early morning flight. As such, I appreciated the efficiency of the check-in, the punctuality of the half hourly complimentary shuttle van, the excellent service all round, and the soft bed with fluffy pillows. The crabtree & evelyn amenities were a nice touch. Its about 10 minutes to Dulles and the shuttle drops each guest off at the curb closest to their airline. I left refreshed, rested and ready for more travelling.