Gabriel's place is clean, beautiful, and I think it's much nicer than the pictures. Also, it has the perfect location which is 1 minute walking from bus station, 15 to the underground, or you can just take the bus to the underground station. There are many good restaurants around, I tried some really delicious food at a japanese restaurant, so you won't be worried about what to eat there. I took Gabriel's advices and went to some pretty awesome museums and National Gallery of Art is definitely the most attractive one to me. Anyway, Gabriel can be a perfect guide for your tour.