This is a wonderful spot. It is a complete oasis from the hustle and bustle of the old city of Barcelona. It faces onto a small side street but you can hear none of the noise from the bedrooms which are all in the back. The apartment has everything you could need, and the kitchen is very well stocked.
In terms of location, it is an easy 5 minute walk from La Rambla and is near the Boqueria market. There are many small stores and several supermarkets nearby.