The location of the apartment is perfect for everyone but especially for tango dancers it it the best; all the famous milongas are walking distance and if you still want to take a taxi you will pay very little for sure. Luba's apartment is at 9th floor and this is great because Palermo is not only a very nice neighborhood but also is very very noisy, so it was great that her flat was quiet! The street and the building are very safe also.
You shouldn't worry about the dog because he is very quiet and always sleeps in Luba's room, never makes noise. I felt myself home at Luba's place and everything I needed was there for me, including mother's care from Luba as I had a bad cold when I was there:) So if I go back there I will definitely stay with her again and I recommend everyone her place:) Un abrazo Luba!