Quite a pleasant experience, only 1 major complaint
My friends and I visited DC to tour a couple colleges we are considering for our masters. We were on a tight budget, and this hotel was just what we needed. Previous reviews mentioned "no frills" and that's true--no continental breakfast or anything special. But it's next door to Burger King, a nice Italian place, there is a Subway on the corner and a Starbucks next to the Metro stop, which is conveniently located only 2 blocks away. I was pleasantly surprised with a nice clean bathroom stocked with plenty of towels and soaps, comfortable beds, free coffee in the morning and a nice big flat screen TV. 
My only complaint was when I called to make the reservation, I was quoted 20 dollars for parking. I even double checked that it was for the whole weekend, but when we arrived, we found out that it was 20 dollars *per night* with a expensive tax that made it almost 50 dollars for the weekend. As I mentioned earlier, we were on a very tight budget, and that last minute expense was quite an inconvenience as we had to cut out a couple other things just to afford to park our car.
Other than that, we had a very nice weekend at Days Inn on Connecticut Ave.