I love these bottles and already own two. They are so useful, I take one to bed every night so I have easy access to fresh filtered drinking water at all times, I also like to ensure I have one with me anytime I go out and about. I would have given them five stars but, after a year or two I found that the pull up drinking spout becomes loose and doesn’t stay open when you try to drink so it then becomes a two hand effort to use the bottle. It’s a shame but something that I’m sure Brita will look at with a view to improvements to future tops. That said I’d still purchase another bottle as the benefits and ease they bring to drinking fresh filtered water are  very clear.