This is a nice product. I've used it a few times & haven't had it leak as previously reported. The capacity will be good for most people, and the rings to mount this on your tree are good & sturdy, while at the same time being coated with a softer quieter material.
Have NOT had it leak a single time. Good capacity. I can stay on stand all day, if I watch my fluid intake. This replaced the "spare bladder" product I was using, mostly because they are disposable, and this is fairly permanent. I've since purchased one for "road trips" when a restroom isn't always a practical option.
The bottle top is sufficient size and tightens securely and the bottle itself has adequate volume. The bottle is stiff enough not to make noise like other water bottles do in your pack when they get squished. It's difficult to talk good about a urination bottle but this one gets 5 stars from me.
Great product for those of us who tend to stay in the stand all day. The only thing I would recommend is covering the outer shell of the bottle with a soft rubber to cut down on potential noise. Putting the hard plastic bottle into the metal hangers provided while in a tree stand creates a lot of unwanted noise.