Let me start off by saying overall I LOVED this. It’s quiet and it offers many different types of suction; I feel like I can get maximum supply from the different types. It’s so compact that I can take it anywhere.However, there are two downsides for me.One- I dislike the bottle sizes. If you’re an exclusively pumping mama 4 ounces is not a big enough bottle. Having to pause pumping sessions to empty the bottle is a bummer. It definitely would pay to purchase separate, larger bottles.Two- battery life leaves a bit to be desired. I pump 30 minutes at a time and it seems the machine can get me about two MAYBE three sessions before it needs to be recharged.This is the first rechargeable pump I have purchased so it may be on par with others like it. I just wish the charge would last longer.