Exceptional in every way. Amazing, fully-equipped spaces, close to bars. Being on the water is lovely. A big, delicious breakfast was unexpectedly included. The check-in is a little houseboat office right near the houseboats, and was super-easy and so friendly (and open until midnight when we checked in!). This is clearly a labour of love for the owners and it shows. A 6 euro taxi took us to the center in 10 minutes, but you can also cycle (a bike is provided). My number 1 choice for Lisbon in future.