the drinking opening is a bit wide, which prop is only a problem if you sit in the last ca wants to drink 150 ml, as is already running something on the edges, are in it, it's not good, even to drink the leftovers
What I like about the large opening, is that I drink more than this automatically from a small opening
thanks to the large opening, it can also be easily filled
the sklaierung is also convenient because one can read so good, how much you drank, or how much you have filled
the lid keeps very tight, but I had always filled only tap water, ie water without gas
the bottle is also fell down before me, it's not happening, it is very stable
although the plastic is slightly thicker, I do not find hard the bottle