LOVED: Vibe, Youth and Boost PLUSES: Makes drinking more water easier. Pretty bottle that keeps my water cool and fits in my drink holder in the car (20 oz). Some flavors seem to increase energy. MINUSES: Be careful what you drink near bedtime. I'm still experimenting about what I can and can't use at that time. I'm a light sleeper and I think, so far, Glow and Boost make it difficult for me to go back to sleep. I also don't care for cold water, which is the way Waterdrops are recommended to be consumed, so I drink all the flavors cool...room temp from the faucet. Probably detracts from the flavor but I can only drink cold water in small sips. To finish all the water I need, I have to be able to chug it. Gives me a headache if cold. DO NOT CARE FOR THESE: Zen and Focus. Glow is okay but not a fave. CURRENTLY WAITING FOR: Love and Shiro to try. Shiro will hopefully be good for morning Boost. SHIPPING DIFFICULTY: Waterdrop doesn't tell you how items will ship ahead of time. This is fine for most people but my town doesn't have street delivery of USPS mail...only UPS. I've had one shipment returned because it came USPS rather than the first UPS shipment and the post office wants more money to redeliver the pkg. No way. If this problem continues, I may have to quit buying these. It needs to come USPS or UPS each time so I know which shipping address to provide.