We, a group of 5 people, stayed at the "Centrico duplex .Grupos.Erasmus." for 11 nights. The apartment is located in a calm side street but still in a relatively central location of Málaga. We made several trips to other cities and we could easily reach the main station and the autobus central station within 25-30 minutes of walking. Alternatively, there are several bus stops in the roads close to the apartment, within only a few minutes of walking, that can take you into the city.
There are several bakeries within proximity that are also open on Sunday mornings, so fresh bread every day was easy to obtain. There are a few supermarkets only a few minutes away for everyday grocery shopping; for more poshy purchases there are a big market and a big El Corte Inglés within 15 minutes.
Back to the apartment: the description was accurate, each of our 5 people had their own bedroom. The beds are quite short (190cm I guess) and (partially) not too sturdy, so keep that in mind if you are tall and/or bulky.
The apartment was pretty much clean, although there were some bad odors coming out from the canalisation at times. Additionally, in the mornings, when several people showered after each other, we noticed that the manhole directly outside the building would flood/leak a bit. This is quite common in Southern Spain though - so none of our group had a big issue with this.
The furniture in the apartment was quite basic and could do with a bit of improvement - but it did the job and was adequate enough for our needs. The same goes for the kitchen, we would have loved to have some better equipment (e.g. better knives) but altogether, the selection of utensils and pots and pans was very good and we were able to cook good meals for us.
Last but not least, the wifi connectivity was excellent throughout the house and the internet speed good enough.
Overall I can absolutely recommend this place and communication with Maria Jesus was smooth and friendly throughout the whole process and stay. We had a terrific time!