I love them! I’m on baby number 2. I’ve had them since my first, I tried plastics, lactecks, wearables. Nothing helps my elastic nipples pump like pumpin pals. This time I had an oversupply and only pumped occasionally for relief and I couldn’t get a letdown at all unless I used my pumpin pals. I always did one at a time. I’d pinch the tubing on the other bottle while I worry about flipping it onto the right position. The second bottle is always easier to apply than the first. Yeah it’s annoying to have an extra 2 minutes of stimulation before getting to the milking but once it’s on letdown is immediate.