Just got my first 2 of these.
Maybe it is just me, but it seems that the hole is so small that the juice is really hard to dispense.
I use tanks and the WOW Blueberry was so hard to dispense that I was afraid to apply more pressure and pop the tip off.
I tried putting a needle through it to open up the tip, but with no luck.
I transferred it into an empty original type bottle and that works.
I can see where these might be nice for cartos, but for tanks I am still trying figure out how to get better flow.
Probably just me.