Can you find someone who has one that you can play with first? Or join a group of quilters who already have one and share dies? I borrow a friend's when I want to cut a lot. I buy her replacement cutting mats when I find them on sale and buy the dies I like and add them to her collection because several people use hers and several people buy dies for her Go. It's a fun way of doing it.
I only really like it for curved edge things and odd shapes, drunkards path is fantastic, circles, applique things. The strip die is nice because you can cut out a lot in a short period of time.
You really have to decide what your quilting style is...if you do the same type of blocks/quilts a lot this is great, if you are creative and never repeat yourself it may be limiting.