WaterDrop is a great idea and all the flavours I have tried so far are very authentic, maybe not so much the cola but it is close. The orange and mango are possibly my two favourites. My ony issue is the time they take to disolve, I personally think a powder would work quicker so I either crush mine or put them in a ottle of water and then into the fridge so it is ready for me when I want a drink and don't have to faff about waiting. That said I is a great way to enhance your water. I drink quite a lot of water and enjoy the added flavour without the "junk" you get with fizzy drinks or diluting juices.