I don’t know about you but I have tried at least a half dozen reusable water bottles and none of them have grown on me, until now. I received a sample of the 18oz Kleen Kanteen and I love it. First off I love the color(so important) I got the commuter orange. It is a bright cheerful color that I like to see first thing on my morning commute. Next is I love how easy it is to carry! There’s a place your index finger to hook onto the lid. You can also buy a carabiner and attach to a bag or belt loop. 
Of course their bottle are all BPA free, whew. I used to use a Sigg bottle until I found out it had bpa in it’s liners so ever since then I have been extra careful about the bottle my family uses(note Sigg fixed this problem last year).
If you are looking for a new water bottle I highly recommend the Kleen Kanteen.
