Point 1:
The tube / straw is not firmly incorporated into the drinking head. Consequence: If you want to use it, you have it yourself "fix". That would not be a big problem if the whole for if so resolved that he also holds. The "mechanism" which one has come up with here is, however, just as clumsy as non-functional: you "come from" the tube just at the bottom of the cover provided in a hole for it, that connects it to the mouthpiece / drinking nipples. There is no way to fix it there or equivalent Consequence of this design is that the hose after a short time (before the bottle is empty) again from this connection that as I said has little grip, and then dissolves well in the bottle back and forth shaking and just a disturbing element without sense. Drinking can then thereby naturally anyway and desire to open the bottle and reinzustecken the hose so that it then keeps half an hour (so long does not move the bottle) it also has the latest after the third time no longer. For this non-functional system a thick point deduction.
Point 2:
If you want the bottle now, due to the non-functioning hose / straw without just use this, it comes with every sip, we drink from the bottle to a very loud "squeaking". Fellows describe it as a sound resembling the typical Delphi cry. This arises probably squeak when the suck on the mouthpiece air into the bottle passes (must be so, otherwise no water would come out because of the construction). Although the volume of the sound correlated with the suction power, but can not even by ever so gently suck completely prevent. If you sit in a lecture or a seminar you to drink rather less pleasure out of the bottle, because the sound is so loud. When I saw the bottle for the first time with had in the university and did not know what happens if you drink without hose and a courageous train from the bottle took looked at me then the whole course in amazement. Thus, the bottle is therefore not to be used without a hose quasi. Another point deduction.
3. point:
The opening mechanism of the bottle is designed so that every time you trigger it and the mouthpiece folds out, doing some water drops are catapulted with. So I press the button because I want something to drink, I get first several drops of water on my face / my documents etc. Of course, is quite funny in the summer, because you can fool with it also fellow students or friends once or twice. However, in the long run just unbelievable annoying because there's just no way to prevent these drops every time except to press the mouthpiece and let it then come up slowly. Thus the great automatic folding mechanism leads to absurdity but because each conventional closure would thus with less effort and "risk" open. Even this 1 Punk deduction.
Another, not too important, criticism is the weight distribution. The head with its great auto-folding mechanism is in fact enormously difficult and so is the bottle, the emptier it is always uncertain because of the total high center of gravity.
Here again a flop :( why there are no really good bottles?
