I'm pretty much a sparkling water kind of person, no matter the flavor. I initially purchased waterdrop because I did want to entice myself to drink more plain water. Boost was my first attempt at that and I was pleasantly surprised that it was subtle yet did give a nice overall aroma and elevated taste to my water. I enjoyed it. I just wish it didn't contain added sodium. I then tried the zen flavor that includes lemon grass. Knowing just how strong lemon grass can be raw, I had the impression that this would really be stronger on the spectrum of flavor than the boost. To my surprise, the Zen was unassumingly bright and wonderful without being in your face in terms of flavor and aroma. It's very smooth and enjoyable and still subtle enough not to overun taste buds but you still know it's there. The last flavor I drank was the focus. This has the green coffee, lime, and acerola. Sounded exciting but I had no idea what to expect from that combination. It's beautifully bright and energetic as a flavor and thoroughly enjoyable. I can see why this was called focus. All 3 had very unique tastes but all were very pleasant and enjoyable and got me to drink a lot more plain water in the end. Win win!!