The product is excellent. I love its simplicity. I struggled to get the attachment to my breast correct the first couple of times - either too much suction that it was painful, or not enough suction so it would t work. It’s also not always easy to attach both the baby and the breast pump at the same time. I didn’t think about that before I bought it. Especially if Bub is really hungry and impatient. Not enough hands to do both. But with some perseverance the product is working for me and I would recommend to others.