Sarcasticgamer.com does a detailed review of the Rock Band 2 guitar and compares it against the Guitar Hero III wireless guitar.
From the review: "I picked up a new faux Mahogany colored Rock Band 2 guitar last Thursday and put it through it's paces. Before picking it up, I was dying for an honest review of the product, as my only time with it was playing it at PAX.... Unfortunately, there's not much in the way of an honest review to be found on the internets."
