The sizzix pro can use both. It is not potable like the go so needs a dedicated space. From those that have both say that the sizzix is more sturdy than the go. I have the small sizzix and like it. The sizzix pro to me is more comparable to the studio not the go but the machine is more expensive but cheaper than the studio you can usually find them on sale at joanns online or patsy thompsons website ocassionally but the joanns one does not include the extended quilting size accessories