i tried to have some on a hiking activity for school 3 years ago and it was just the worst
When I went to Rome I bought supplies from a local Spar, and got some 2 litre bottles of water, to use in the hotel (wasn't quite trusting of Italian water), and as refreshment while travelling.
Anyway, I don't read Italian, and the labelling on the bottles was not very obvious, so I ended up brushing my teeth in sparkling water that night.