Stayed one night before an earlier AM Flight. Location was very convenient to the airport. Staff at the front desk were excellent, very friendly and professional. Room was very very clean and bed was clean and very comfortable. Had a king bed room and it was the most comfortable bed I've slept in at a hotel. We didn't use any other amenities due to our short stay but if you're looking for a great hotel for your travels, I would highly recommend the Holiday Inn at Crystal City.
Only negative was the parking garage...Although it was located on property under the hotel, it appeared to be very old and was really narrow. If you have a large vehicle I would imagine it might be difficult to navigate the narrow turns. A very small negative for an excellent stay.

For flying into DC (Reagan) for the weekend this is a good place to stay because it is affordable and close to the airport. There is a shuttle that picks you up and drops you off at the hotel (although I would suggest calling when you have your luggage). It is about a 15 minute walk to the Metro (most of which can be down underground) and a 5 minute walk from Legal Seafood. The staff was very helpful the room was clean and modern.

Locationwise is this hotel not excellent for a DC-citytrip. But it's really close to the Airport so for early flights it's perfect. It offers a free shuttle bus to the airport.
If you want to visit DC you can take the shuttle bus to the airport and get on a subway there. Or you can let the shuttle bus drop you off at the Crystal City metro station, which is about 10 min walking from the hotel. It takes max 10 min by metro to DC centre.
We had a great room, on a higher level, which was extremely sound proof. I don't know if the rooms on the lower levels are equally good, so i'd recommend paying/asking for a higher floor because it's located on a really busy street so there's traffic around the clock. Also planes fly by every now an then, but didn't hear them at all.

Breakfast is served in the diner that's attached to the hotel. The buffet is nothing special, but when you negotiate a bit you're able to order from the menu. Everything's fresh and tastes really good.

Overall a great hotel!!

Tip: try eating out at any of the restaurants located in crystal city, there's a great variety of places there!