It's ok :/
It works, but the silicone was ripped when I got it as well as the fact that the metal it's made out of it is of poor quality under the actual silicone tips. The tend to slide off easily, VERY easily... but when used properly, with a bit of a method, it does work well.
Bigger than expected
Thought this would fit my needs but so far it's too big for my level of consumption; down the road is another story.