I will put in another vote for Reverb. Fees are around 6% I believe, but it's an easy site to use, and if you let you buyers use the Reverb checkout, they can qualify for financing. We signed up for Reverb after getting a few emails from then inviting us to try the site, and I am glad we did. The site is easy to use, and the support is second to none. We currently have 176 guitars listed on Reverb, but we will definitely add more guitars to
our Reverb Shop as time permits.