Sure Cuts Alot

Hey All, Do any of you use Sure cuts alot?  I have been thinking of getting it, because the price of cartridges is so high, and my new friend Amanda (who I am currently stalking, (don't worry,I have her permission) who designs on Cloud 9 designs uses it and loves it. There are a few problems with me getting it. First I do not understand svg files, and anything else that has to do with computers. Second, I thought that I read somewhere that the latest version does not work on the Cricut.  So I am wondering, how many of you guys uses it, and how do you like it?  I would love any info that any of you have.  Please feel free to comment on this, and help me make my decision. Thanks guys, Karen♥