Being an italian ice cream lover I always check out recommendations for ice cream parlors when I go to a new city. Allegro was recommended, and I totally agree.
All the flavors we tasted were good, but it is certainly one of the lemon sorbets I have tasted - soft and precisely as sour as it has to be (i hate it when the ice dreams are too sweet, it all gets the same).
At Allegro the ice creams tastes of using fresh ingredients and not jam or something of the like.
And there is a really nice and friendly atmosphere and very good service. It feels like people really enjoy working there.