I have a few photos from the room but will have to post those tomorrow as I took them after I had downloaded today's photos.
The hotel is located on Maryland, off 12th. You have to walk a block from the hotel to get to 12th and then head up 3 blocks to Independence to access the National Mall area. It's fine to walk during daylight hours, so if you plan a stay when the days are long, you shouldn't have any worries about walking. I wouldn't want to walk alone at dusk although we haven't seen any unsavory characters - it's just not populated. If you were out later than dusk and not in your own vehicle (which is valet-parking only for $40+ a night), I'd definitely take a cab.
We have the concierge level (after all, we did exchange into the "concierge collection") so that means we are on the 8th floor and we have access to the Tai Pan Club which is their concierge private room / service. The room comes with access for two, and anyone age 12+ has an additional charge per day.
The Tai Pan Club comes with complimentary high-speed internet access (wireless) in the room. However the "free" codes didn't work, so the front desk gave us the pay-code and told us that she made a note in our file to comp the charge; we'll see how that plays out later in the week when I check our bill (probably on the day before we check-out).
We also get complimentary breakfast (well, I don't know how you can really call it complimentary since it costs more to stay at this level than others), but we had a nice breakfast this morning. They had a selection of fresh fruit, donuts, croissants, bagels, meats, cheeses, milk, yogurt, cereal, granola, and a variety of juices, teas, and coffee. You can also get bottles of water, but they are glass bottles and not designed to take with you.
From 5 - 7 p.m. they have "sweet savories" which is a variety of fancy food. Tonight they had california spring rolls, some other sort of sushi looking thing, a variety of spreads like hummus, crackers, cheese, fresh fruit, and fruit chips.
You can get complimentary soft drinks, tea, coffee, and water all day; they also serve alcohol which does have a charge, but is also available throughout the day.
The Tai Pan Club lounge is nice and quiet, a good place to relax or, if you have to, work quietly. They have several newspapers for you to read, and there is also a t.v. where you can watch if you want.
The hotel has an indoor pool which is located in the Spa area - you walk through the spa to the pool. It's 4-foot deep the whole way. We checked it out a little after 4 p.m. today and there was one dad/daughter swimming, and one lady having a private aqua-fitness class. It did not have an overwhelming chlorine smell which I often smell when we stay somewhere with an indoor pool. The pool is open from 5:30 a.m. to 9 p.m.