I recently gave birth to my first child and managed to start breastfeeding successfully but unfortunately due to Covid had to go back to work sooner than planned. I bought the calypso double pump and got along with it fantastically from day 1. I have the cycles and pumping on the highest setting and it’s not painful. In the first few weeks of using it I was pumping 4oz per session (from both) now I’ve regulated I pump around 2.5oz in 20 minutes. Admittedly even though I’ve got the double pump I only use 1 at a time as I use it at my desk and by having only 1 pump on I can still do my work (using 2 pumps at the same time holds me up as I can’t type and get on with anything else whilst pumping....just my own experience). It’s easy to clean with the microwave bags. Storage and transporting is easy with the cooker bag and ice packs. I knew nothing about expressing before buying this and bought it after reading a poll that it was the number 1 electric pump.....it seems that poll was correct. Highly recommended.