Gros is very nice host. There were snacks and drinks on the boat when we arrived, and he was very helpful when we forgot some documents on the boat. We loved staying on the boat, which was our first time sleeping on water - a truly unique experience. The location is beautiful with a full view of the lake - which makes a nice, peaceful change after being in the busy city all day. There is an excellent restaurant right next door. The metro/tram is not even a 10 minute walk away. We always took the tram, although it takes a little longer than the metro (35 instead of 25 minutes), but you can see so much of the city - it stops at lots of central places, the flower market, Dam square, the Central train station, so you can hop on and off. Amsterdam is an exciting place and is now definitely one of our favorite cities in Europe.