Which medela?

Currently pregnant with my 4th and after lots of tears and failed BF with the previous babies that lead to exclusive pumping I’ve decided to just EP from the start. Over the years I’ve used medela and Willow and my ladies like suction and would put out up to 8z per side per session with it. I’m looking at the hands free versions and can not focused out the difference between the swing maxi and the freestyle. Does anyone know much about them or what the difference is other then the looks?