The raspberry flavor on these wasn't as strong as I expected, nor was it as thick as I expected a 'smoothie' to be. This really seemed more like a juice mix than a smoothie to me. I think I'd consider adding yogurt to this to give it a thicker, 'smoothie' texture.
Also be aware - the nutritional information on the carton itself is for 100 ml of the 250 ml container so it can be misleading. The nutritional info on this site a better reference for an entire box. At 31 carbs, I find a box is too much for a serving myself.
I've noticed babybel's also come in a bunch of (tasty) flavors - besides original you can now find swiss, cheddar, and gouda. Yum!
I drink these all the time - they're really flavorful and it's been great to have an iced tea substitute. They aren't overly sweetened (though they are sweet). I do find that I don't notice much difference between the two flavors.