The Residence Inn Alexandria Old Town South at Carlyle is a very clean, comfortable establishment. The staff was extraordinarily friendly and helpful. The complimentary breakfast and social hour saved us significant $ and was surprisingly good! My only complaint would be that the wine should be two glasses per guest/not per room ;).
The room was well-appointed, clean, in excellent condition. The close proximity of the King Street Metro Station made it easy to commute to the city for business and sight-seeing. Actually, the tracks run right next to the hotel, although one would never know it, because the rooms are so sound proof. Very quiet!
The staff comped our parking rate ($18/day) because we had requested a room on a low floor and by the time of our arrival, the fourth floor was as low as they could provide. We also had a problem when our wireless router burned out and could not be replaced for the duration of our stay. Again, the staff slashed our room rate. These accommodations made our stay pleasant in spite of the bumps.
I highly recommend this hotel for families, business travelers and tourists. Old Town Alexandria is a lovely stroll. Close proximity to Mt. Vernon and Arlington make this location ideal. And the Pentagon is very nearby, making it ideal for those weary business travelers.
Nice fitness area, although no pool, which could be a minus for the family with smaller children to entertain.
All in all, an excellent accommodation in the Greater DC Area!