We were a bit worried by the busy street it was on but once in the apartment realised it is very quiet, modern and lovely.
We walked to all sights. Longest walk was to El Retiro Park, about 40 mins, everything else within 15 mins. Supermarkets just around corner by Princepe Pio Train Station, although we didn't know till we were leaving.
Abel met us and was very helpful in organising baby cot etc.
We recommend this apartment!