Completely useless product in my opinion. I couldn't extract any milk from my breasts at all. I don't know if it's because of the quantity I may have, but even so, it should still be able to extract as much as there is. No comparison to an electric hospital-grade pump. Yes, it may be economical, but it doesn't do its job.

I bought it for emergency use for a trip. For its price, it is very good. Definitely not as effective as the electric one, but it was fine.