Having struggled with metal water bottles going rusty because of the electrolytes I drink I decided plastic would be better. The bottle feels nice and sturdy, the lid is leak proof and the spout is easy to drink from. The straw is easily removed and the spout is easy to clean with a bottle brush. The markings on the side are really helpful for putting the right amount of water in and also to figure out how much you're drinking. The strap thingy can be removed, I wouldn't do it too often because the ring would wear out, but it is possible. I like the rubber on the side of the lid, it is so much easier to put the lid on. I wish the spout was fully removable, I tried but didn't want to damage it. Would make cleaning even more convenient. I love the button on the lid, it almost fully opens up the lid. I will say, there's a whistling sound at times, because of the tiny air hole. And I've noticed this bottle has a tendency to squirt out sometimes large amounts of water if it's pressurised inside. I find it happens less often if I leave the lid open until the drink powder has fully dissolved and until the water clears up a bit. I find it still seems to happen randomly. I have also found it difficult to drink the small amount left in the bottom so usually have to waste that bit. For the style of bottle it's really good, and the minor issues are not too annoying, but I can see why metal bottles are more popular nowadays. I mean, it's probably one of the best reusable plastic water bottles you could find in that it does not leak, is easy to drink from and is sturdy.