“Convenience is the word here. Easy to use on the go. Pleasant to drink. What’s not to like. One slight niggle - the bottle wrapping is a nightmare to undo and I often have to resort to asking my husband to get it off! So if you have dexterity issues, this could be an issue. My other concern is that the bottles are lovely quality plastic, and although I religiously recycle, it doesn’t feel right throwing them away! Hence why I’ve dropped a star on my score.”