I really enjoyed my stay at Marta's apartment. The unit is well-lit and comfortable and in a safe and highly convenient location... with pretty much all that you need either just around the corner or within a short walking distance - restaurants, supermarket, mini marts, coffee, park, spa, etc.
Marta (who owns the unit and lives abroad) was a pleasure to deal with and easy to reach via messaging. The same with Martina (my contact in BA), who was very quick to respond to a minor issue and is warm, helpful, and personable.
I would certainly recommend this apartment to anyone visiting BA.