We had a pleasant stay at Loredan's place.
We booked the place for two weeks and at first our impression was that it was very tiny, but tidy.
After a few days we got to know Lisbon a bit better and the fact that people are used to live in such small houses made us feel more home, as if we lived there ourselves.
Lorendan was a very friendly host and brought us new towels, bedsheets etc. after the first week.
Only thing you must be beware of is that the humidity in the room can be unpleasant for some people but it didn't affect our stay. Also if you are a bit claustrophobic this place might not be for you but as stated earlier it is somewhat normal to live in tiny houses in Lisbon.
The location is very good, it is near the station of Cais de Sodre, you can go everywhere from there by using the public transport.
To conclude overall pro's and con's:
Pro's
+ cosy place
+ close to lots of tiny hip restaurants (youthful area)
+ close to public transport
+ close to the water
Cons
- can be hot inside
- high humidity