Our first impression is 'disturbed'. The bottle of Celsius does not list all the ingredients, just the 'thermogenic' ones. A visit to their website is of little use either.
We also notice the subtitle on the bottle is "Enjoy the Great Taste of Burning Calories!". That does not sound appetizing. About the same as "Enjoy the Great Taste of Burnt Popcorn!".
We decided to start with the Cola flavor. A sniff of it smelled like hippie soda. A sip however was quite different. It tasted like super-sweetened diet hippie soda. With a little tummy burn.
After a few sips it was clear this was not a good beverage and we would never drink it again if it were not for this experiment. In fact, I considered deleting the first post and pretending it never happened. But we decided to soldier on.
WorkingData felt decidedly not good after drinking it. I had to head to the dentist office and had to pee not less that 5(!) times while there. Is this crap a diuretic too ?
I figure there is a good chance we still might call an abort on this whole deal.