YES! I am one of SCAL's biggest fans. Considering the cost of the program is less than the cost of a cartridge, to me its a no brainer. It opens up literally thousands of fonts. I was a font cartridge junkie before SCAL, and since I've had it, I haven't bought a single one.
For fonts, it is incredibly easy to use. Very user friendly. It is easy to weld, easy to shadow, easy to move your cuts around the mat.
I have not really even scratched the surface of what it can do in terms of shapes, mostly because I just haven't taken the time to really sit down and learn Inkscape (a secondary program you can use to create image files). But I have, following step by step instructions I found online, I have taken files I purchased online for use in the Wishblade/CraftRobo type machines and converted them to files I can use with SCAL.