I'm not into all the reusable water bottles (or trends - unfortunately because I need to drink more water!) ... but I found myself grabbing my Thirsti bottle more and more as I left my house. A big selling (and comfort) point for me is the spout - its smaller like a typical bottle and I love that it isnt one of those big clear disc lids (that always look so dirty). ALSO - and this is huge for me - you can unscrew the entire top to make washing and filling easier. So many of my cups/bottles with smaller spouts don't have this option which means I never use them since they are hard to clean. NOT a problem with Ninja Thirsti bottle.  Finally...I had to buy a second bottle because my spouse stole my original one! All around, a great bottle and I'm really happy with it.