i haven't tried them but my husband has. he said they are ok. on a side note- his co worker thought it'd be a good idea to down 5 of them. he ended up calling 911 and told them it felt like he was having a heart attack. they took him in, ran tons of tests and he finally was able to tell them he drank 5 at once. needless to say their work put him on leave for 4 weeks, made him go to a cardiologist and all the workers had an inservice on the dangers of energy drinks. i think he learned his lesson.