I really like mine for odd shapes and for triangles (because the corners are lopped off, making perfect alignment very easy).
Not as keen on using it for cutting strips unless you need a lot of strips from the same fabric. For strips, I actually prefer the June Tailor Shape Cut.
Haven't tried the applique shapes, but one day plan to get the Sunbonnet Sue and experiment with using fabric fused to Misty Fuse.
If I had the space and the money, I'd get the Studio rather than the Go! that I have -- just because I think it would be easier to turn the crank!