We stayed at the Grace 1 apartment and we loved it! We had a total of 6 people so 4 rooms was plenty spacious and accomodating. We loved how charming the apartment was and the nice little balcony area which was thoroughly used every night. Apartment had everything we needed from fresh towels, dishes, working dishwasher, washer and dryer and more. Other than purchasing more toiletries later in the week, there wasn't anything missing.
Apartment was a 10min walk from Paseo de Garcia shopping area and right down stairs had some food options and a very convenient coffee shop.
I will say that the listing does say Floor 1, but it is definitely a few flights of stairs up and by my interpretation I would consider it the 2nd/3rd floor (but also, probably just my American way of interpreting it). There is a small elevator though which is very convenient for large luggages!