Diogo was very nice and helpful in arranging our accommodation. We exchanged a few messages prior to our arrival and the check-in/check out was completely smooth. We didn't have the chance to meet Diogo though, as his friend was waiting for us.
The apartment is very well located, we really liked the area. It is close to the tram but also the main train/bus station near the shore (from where you can also catch a bus to the airport). The flat was clean and comfortable. Although we went around mid-April it was still a bit cold, and the apartment not well heated so cover up! There is a supermarket nearby and plenty of bakeries around, which made it convenient. It is mostly ideal for a couple with/without children: the living space is rather small so for a group of friends it wasn't the best. Nonetheless, we had a great time there.