Teresa was a great host! She explained everything in detail and provided us with a lot of tips regarding Lisbon and the surroundings.
The appartment is perfekt for 3-4 people. Everything you need is provided, even a washing machine. It is located in one of Lisbon's most beautiful quarters, so you can just go out and discover fantastic places. The only downside of the location, however, is the lack of public transport, especially in the evening. The famous tram E28 has a station just nearby, but due to traffic it can be quite unreliable. We waited a few times in vain for a tram, while there were plenty of them in the other direction. So as there is no Metro station near to the appartment, it can take quite a long time to return to the appartment at night.
But nevertheless, I highly recommend staying at Teresa's place. You will not regrett it!