Susa's place is a short distance from the Tarragona and Rocafort Metro stations and a manageable walk from the Barcelona Sants train station. It's well located in a quiet corner of the Eixample neighbourhood with lots of food options and supermarkets around.
Some other reviews mentioned the noise at night; we didn't notice this at all since the windows were closed anyway and the air conditioning was on.
The apartment is kept in good condition and is well equipped. We enjoyed our stay very much, thanks also to the useful brochures Susa left for us.