Update - well it took about 3 different e-mail steps with NI to get the guitar rig LE registered, I can say that this thing is quite nice. Much more capable than Amplitube LE with flexible signal routing, 3 amps - very classic ones at that, many more cabinet simulations, simulated mic placement, decent effects, metronome, 'tape decks' for practicing with, standalone version (you could play-out with this thing, a laptop, and a PA)

Worth every cent of my $15.

Messed around all evening with it after getting it registered. Pretty light on the CPU.

Some very well-known presets that are quite authentic. Lots of 'Stevie' presets, an Angus preset, etc.

-Scott