My wife and I went to Amsterdam for our wedding anniversary.
We failed to take full advantage of the public transport system there (but that is another story).

I can however say that the public transport there should be the envy of every city in Britain, and a template for the government to use if their anty car campain is to have any chance of working.

We bought a ticket that allowed us to travel anywhere by bus or tram for the duration of our stay, it cost roughly £5 each. The journeys we did make showed us that all the trams are clean and comfortable (unlike our smelly trains and buses). We never had to wait long for a tram to arrive as they circle the city all day.

There is only one draw back to this kind of transport system, that is they have a habbit of creeping up behind you and trying to run you down. Admittedly 99% of accidents happen to tourists as the locals have more sense than to walk down the street saying to their partner "Hey look at that, the tram lines go all over the city, I wonder how many people get hit by trams a year". An ominous rumble comes from behind, we look and jump out of the way of a tram that had no intention of stopping for a couple of tourists