Wouldn't Stay Again
We stayed at the Beacon Hotel for one night in D.C. The location is convenient, and we chose to stay here based on the family value package that we purchased through the Beacon's own website. 
Check in was easy, but valet parking is the only parking option, which will cost you about $33/night. Our room was adequate on the 5th floor, but the bathroom was rather small. The toiletries were not impressive -- one unmarked container of shampoo, and another container of lotion. No conditioner, but there were plenty of towels and two bars of soap. Our room was also directly across the street from construction, which started around 6am and was fairly disruptive. 
We did have some issues. First, we had to ASK and make sure that we received all of the discount from the family value package that we purchased. The staff had to "look into" each and every one of the discounts to ensure we were correct, including discounts on meals, half off on parking, and the free bottle of champagne we were to receive. Everything was a bigger deal than it needed to be. We found out at checkout that a lot of specials had been added, but the employees had not been informed and kept up to date of these changes.
We also had issues with the TV in our room. It stopped working while changing the channels, and was not able to be turned on or off. The front desk did send someone up to repair it relatively quickly, and then we had no further issues.
The meals were pretty expensive, but that may just be the norm for D.C., but both my husband and I had some stomach issues following the meals that we ate at the Beacon restaurant. We had no issues from the lunch that we ate outside of the hotel, so we are accrediting our issues to the hotel's food.
Overall, the room itself was decent, seemed to be pretty clean, and although the bathroom was small, it was fine. Our main issues were with customer service/communication and the food. If you are looking for an inexpensive room for one night, this hotel will suffice, but I would definitely recommend looking elsewhere for better service with comparable prices, and be wary of the restaurant.