I drink a Monster every morning on the way to work. I love the taste and it picks me up with just the right amount of energy.
I'm definitely not a COD cigarette and I'm definitely not a bro. I don't have insomnia and I don't have any issues with my insulin levels. The only reason Monster is so commonly associated with COD cigarettes and bros is because of Monster's name, design, and marketing. It appeals to a certain group of people with certain tastes, purposefully or not, and I don't have to be a part of that group to like it as well.
It's one of my favorite drinks and it really does give me a lot of energy, much more than coffee or Red Bull, but not so much that I can't sit still. Did I mention I love how it tastes? God I love it.