I am very satisfied! I had lost it and bought it again. Its material is very good. The lid closes perfectly, so it doesn't leak a drop even if you have it loose in your bag (it won't open by itself). I had it for a year and the only thing that happened was that the color on the lid faded a little because the sun was hitting it when I was on my bike. I have it with me every day, all day, at work and during workouts. The amount of water is very satisfying for me because it's enough for the longest part of the day (of course, I will refill it at some point), but at the same time, it's not too heavy. Also, when I would take protein supplements, the powder would dissolve very well with the mesh it has. Finally, the bottom compartment was very convenient for me to drink water during my workout, and when the workout was over, I would refill it with water and add the protein inside to drink it immediately if I wanted to.

Simply the best, the "lid" holds tightly - it doesn't open on its own. + The bottom part is removable for protein powder to make your drink on the spot.

It is good as a shaker. It has a measuring cup and an extra container underneath for supplements, which can be removed if you don't want it. It also has an internal mesh (plastic net) to prevent protein pieces from passing through the mouth, which did not dissolve well. However, it has a significant drawback: the lid does not close easily, you have to press it with force. I admit that I struggle every time. Of course, as long as I have been using it, especially when shaking, no liquid has leaked from inside. It seals very well.
Update 6-1-2023. The lid does not close properly no matter how tight I screw it, resulting in droplets flying out when shaken. I have never used the container underneath.