I was VERY skeptical of this at first, but when they introduced cola, I decided to give it a try. I love that these are single-serve, so I can make a quick drink for myself any time and can jump from flavor to flavor. They also offer sample packs so you can try flavors without buying a zillion. In the stores, they offer them in "still" water (not carbonated) and it's room temp; I drink it carbonated with ice and LOVE it. Some flavors (there are LOTS of choices) are "meh" (looking at you, weird passion fruit) but cola, blueberry, and ice tea lemon are GREAT and none are terrible. I'm glad I gave this a try; I'm hooked! If you like still water, or don't care, these are a great way to carry flavor with you in a compact, lightweight way. If you have a home soda machine, these cubes take up one zillionth percent of the space the syrup bottles do, don't expire, and don't need to be refrigerated. Oh and a note on the "single serve" part: these come as individually packaged cubes in a cardboard box. You can recycle the boxes, and if you live near a store, you can bring the cube packages back for points. One last note: these do not make your water fizzy; if you want "pop" you need to use carbonated water.