Definitely good value for money! Hosts regularly respond to messages and are there for you when you arrive. Sven is a really helpful and caring person: if you have any (reasonable) request, he will take care of it and ask you later if it worked and if you're fine now.
The place is close to the university, metro and bus stations, the Gulbenkian Museum and the fantastic public park surrounding it, restaurants and cafes, El Corte Ingles shopping centre, a Catholic church, and a Lidl supermarket. To get to the old town, you need to take a short metro ride :)
I found everything as advertised: two clean bathrooms with showers, hot water, hair dryers, refrigerator, heating, washing mashine, and many useful kitchen appliances and utensils.
My bed was comfortable and there wasn't any kind of noise inside or outside the residence, so I got good rest each night.
I was staying there in March and I found the whole residence, including my room, a bit too cold - to get comfortable, I needed to dive under duvets. I suppose it's different in summer ;)
I'd recommend the place to all kinds of travelers who don't need luxury or special service/assistance. Not suitable for folks with reduced mobility (no elevator!) and families with small children, I reckon.
Thank you for a nice stay!