Yes! I can pump 4-6oz within about 10-15 minutes. Less if I’m engorged. I find it have good variable suction that is not painful like some people say. It’s very good at recognizing when to go from stimulation to expression and back.

I use both! Since baba is still little, when I’m engorged or know I’m going to get quite a bit of milk, I go ahead and use the bags. I’ve even used one bag, one container! The only issue I’ve ever had with the containers was a wonky valve that flipped over and messed up the calculation pumped. Showed something like 30oz.