We recently used the Westin in Chrystal City, VA and the Double Tree in Dulles/Sterling, VA. Both places were great. Our complaint tho, is with (presumably) book2park. The fees and costs are getting to where for at least a short duration trip it's no more economical (monetarily or time wise) to use you vs airport parking. Fuel fees? Come on. I get it but we're PAYING to use what would be in essence, an EMPTY parking spot. We like using you but will be more aware of costs and time.