Kristen, I finally received my Sonuus GM2. It was on back order so I had to wait. It works as the reviews on the Internet, that I've read, says it does.
It's definitely mono (as advertised) and has plenty of pitch bend from bending the strings. I just delete them all out unless I want to keep one for a certain note. And you will get noises (extra notes) from your pick and from not playing too clean. I just delete these with the piano roll. But this, to me, is not all that bad. You will need to do some tweaking after recording but I have to do more of it whenever I play keyboard.

I've barely used it before writing this and this is my first impression. I think after you get to know the ins and outs of the thing it will be OK. It works as advertised. I will keep it because it will be good when I need to insert accents to my song. Or add a midi riff from whatever instrument. Also, I can play bass with it. It's not something you would play a concert with but for a tool for recording with, it's OK. For $99, not bad.

"The desire for fame is the last infirmity cast off even by the wise."
Cornelius Tacitus