Yes, it was my first visit. And I absolutely LOVED it! I did not want to go back home. But I think it'll be very crowded 'in season'. There were quite a lot of tourists already, but not so many that it was annoying. We didn't have to wait in line anywhere, but 3.5 million people visit each year, so I imagine that it's horrible during late spring/summer!
But the city is AMAZING! And soooo many chocolate shops! :)