Miguel has been just great - very friendly and helpful, always responsive to questions. Given that he runs a little vine and cheese bar right downstairs from the apartment (both wine and cheese where excellent!) it was always easy to get in touch.
Much has been said already in the other comments about the apartment - not much to add to that: great location, very spacious, nice patio and the sun roof has a truly marvellous view across the city. It#s easy to get around from there, all the amenities you need are close by.
So all in all - we had a great time in Lisbon and we are definitely planning on coming back.
Miguel, thanks again for everything