I love this synth.
It may not be perfectly like a guitar but those electric models sound sublime whether they're accurately emulating a guitar or just creating a new guitar-like sound.
The accoustic model doesn't inspire me quite as much, but I haven't gone into that area enough to have made any conclusive statement.
I do like the GUI personally. I like being able to move the various components graphically. I don't know - more intuitive for me or something.
In any case, although I purchased this product quite impulsively I have certainly not regretted it.