I have it, actually.
I like the interface and I like the clean sounds, and the wide array of effects.
I am not so crazy about the distortion sounds.
They may be authentic and I just don't have the ear for it. They just don't hit me in that "ooh I like this" way.
I believe the software has a 30 day trial.
You don't need the hardware to make the software work, assuming you already have a way to plug your guitar into your computer. So try it out yourself and let us know what you think.
Jon