As the name "Entre Amigos" says, here in this home (I cannot just call it "flat") you will find a really friendly and welcoming community. During my 1-month stay here, I made a lot of new friendships with my roommates, plus with Gabriel (the owner). Most of the evenings we were cooking and having fun together. It was a very enjoyable stay for me there!
Regarding the flat, it's located near the centre of Porto. You can reach a bunch of famous/beautiful places within walking distance (Gaia, Casa de Música, Crystal Palace, Dom Luís I Bridge etc.). The equipment of the rooms and house is satisfactory, you will find there everything that is needed to make a nice dinner or to work remotely.
The building is a bit old, so are the rooms, thus you can observe some aspects which need improvement or renovation (for example: the roof in the bathroom has some cracks, the windows are a bit hard to open, the washing machine is not working, the kitchen has poor ventilation), but I am sure that Gabriel will take the necessary time and effort to make this steps in the future.
Regarding the equipment, I just want to mention one thing, that the washing machine in the flat was not working (at least at the period when I was there). BUT, very close by, there is a laundry room where you can wash and sour your clothes for a cheap price.
All in all, that was a very enjoyable stay for me at Entre Amigos, I can honestly recommend to you to choose it as your new short/long term home in Porto. :)