In short, the breast pump works totally fine and perfect for me.
Let's not blame the device but learn on how to tackle our personal breast feeding issues.
That's all.
Here is my previous post.
https://sharifamastura.blogspot.com/2017/08/real-bubee-usb-breast-pump.html
Thanks.
p/s: I am a breastfeeding mom for almost 5 months ya.