This is by far the best soda you can buy. Sold only in Italy/EU and Caletoni seems to be the ONLY place that ships it to US. Worth every penny
We had this for the first time in a cafe in Florence. It has a crisp, fresh lemon flavor than was incredibly satisfying after a long day of sight seeing. When we found the soda on the Caletoni website, we ordered several cans. I was afraid it wouldn't taste as good as we remembered, but it was exactly what we hoped it would be! It's costly to get here in the USA, but worth it for an occasional treat!