Some say it taste terrible and others say it tastes like sweet tarts.  I think it taste sweet and does a great job keeping me awake when I make long trips.  I also love the seasonal Plum flavor released during the holidays.  It tasted like Christmas too me.   

Redbull sugarfree energy drink has been Very convenient to have on hand. Many times I seem to run out of energy during the day and it is a quick pick me up and helps me finish out the way that I need to. It is most helpful when I have to drive long periods of time during the night as it will keep me awake for the drive and I do not feel jittery from it, tastes as good as it should

I absolutely absolutely love the taste of Red Bull! It is one of the few drinks I can have without a terrible energy come down. It gives me a little pick me up whenever I need it, I do find however that if you drink it more or less often, (like maybe 3/4 times per month) the effect of energy wears out and it doesn't give as much of a potent kick. But the bubbles and taste are still A M A Z I N G !

This drink tastes like when I was 17 and smoking cigarettes I found in the street. I don't mean that in a negative way, just nostalgic. I don't know why the sugar-free version tastes so much better, it might be leftover brainwashing from 2014 ED tumblr but. Sugar-free is just superior.

this is my go to drink, I am a mom of 4. and I work, and it gives me that bursts of energy just when I need it.. price is right.. I wish they would add more flavors like strawberry, or ice tea flavor.. or like a lemon aide. or apple.. I always refer to friends

Like the 5 hour energy shot, Redbull have been one of my favorite picker uppers. They are constantly coming up with new flavors. I need to submit my own flavor maybe they'll choose it lol great value and I will continue to purchase and do recommend it also.

All the 'wings' without the guilt of sugar intake or that dreaded sugar crash!  A night out with girlfriends after a long week of work?  Someone bring me a Sugar-Free Red Bull!  Dropped the kids off at 7am, worked all day, picked them up at 6pm and then have to rush them off to a night game - please send a Sugar-Free Red Bull my way! 

I love red bull...I find it has a great taste as well as give me a little energy boost..I have also found that red bull does not give me the jitters like other energy drinks...it has just enough caffeine in it to no bother me...if I could drink at least one a day I would just to give me a boost..

Not sure these really give me energy but I get them often now just for the taste which is possibly just an addiction/habit now because if we're being honest, they really don't taste that great. Wish my self control was strong enough to stop drinking then but I digress. Rating a 3 since I'll most likely buy one on my way home from work today.

 I'm not a huge fan of Red Bull in general. Both the sugar-free and regular tend to upset my stomach. I'm not sure if it's related to the carbonation or a specific ingredient but they make me bloated and nauseous.. however, the reason for a three star is that if mixed in with another drink, I don't have the same reaction simply due to lower quantity. So if you're using as a mixer if you are sensitive like me, I wouldn't hesitate from trying definitely provides energy without the crash.