Definately electric ones are better in my opinion. I started off with a Tommee Tippee one which unfortunately I'm having to send them back as there is a problem with the motor (although I am assured that this is a very rare problem). In the meantime, I bought a Medela Mini Pump which I have to say is much better. I can get the same amount of milk out in 10 mins now that I used to in 30mins with the TT one!!! Alot of my friends gave up on breastfeeding because they couldn't get the hang of the manual pump and they didn't get an electric one. Obviously everyone is different, but in my opinion, electric ones rule and the Medela Mini one is great! xx