I had a very pleasant stay at Luba's place. She is a very nice lady and communication was very easy previous to my arrival. As my flight was delayed, she arranged for someone to wait for me at her place.
Unfortunately I didn't spend much time in her apartment and for this reason I was not able to see much of her.
Luba's place was exactly as it was described. I will hardly recommend Luba's place to stay in Buenos Aires. Myself will definitely return to her's place if I ever have to go back to Buenos Aires.