There are no shortage of places to stay in Barcelona at a variety of price points, but Oscar's place was very well located for most activities you would want to do in the city. We were very comfortable and felt totally safe, and we were welcomed by a courteous representative.
We appreciated the modern bathroom and kitchen, air conditioning, and the comfortable patio space. Walls are a bit thin and we could hear our neighbours (also vacationers) next door coming home very early in the morning, along with light conversations from next door. We heard occasional subway rumbling but this didn't bother us. Bed is very firm; one of us liked this and the other did not.
In general we were very very happy with our stay at Oscar's for our first trip to Barcelona. Steps from the old quarter and many popular tourist sights make this a great location.
Like many Air BnB rentals it is clear that this is not someone's permanent residence. This comes through in small things like comfortable pillows, more supplies and equipment for cooking, things to take to the beach, etc. The apartment is well staged but once you settle in it's clear that it is on permanent rental on Air BnB.
Muchas gracias Oscar!