Before I went there, I checked the street view on google, and felt that I was quite a sketchy street. Once I got there, I learned I was completely wrong. The buildings nearby just look old, that's all. This hotel is just 2 blocks away from the Obelisk and on the small narrow road which is very safe for walking because there are a lot less traffic than the main road. Restaurants are abundant, and from salad bars to high end places and mostly on the next block which is only for pedestrians, no cars. Walking to the Casa Rosada area is just about 10 minutes.
I didn't book my room with breakfast because I wasn't sure if I had enough time for it, but then I decided to have it. The cost was about the same as if I paid in advance, no surprise, kudos for that.
During my stay I had some difficulty with my tour, the lady at the front desk was really helpful, and spent enough time for me to finally got through to the right person and nailed it down to get the tour to pick me up eventually.