I have both the accuquilt Go and the Studio cutter and I love both but with the studio you cut more and really jumbo dies are used to cut big shapes. It all depend on what you want to do with the cutter. The bigger ones are more for quilt shops. I got the studio as I am starting a kit business.
Since I got three studio cutters I am selling my Go which is like new in the original box with bunch of dies with it :-)