Vox Amplug Acoustic headphone amp

Hey all,
I've been wanting to get a headphone amp for my Risa stick. I knew about these Vox Amplugs, but didn't realize they had an acoustic model.
http://www.soundonsound.com/sos/jan10/articles/voxamplugacoustic.htm
I ordered one from Amazon, and it should arrive Friday. I'll post a review.

Was considering of getting one.. Thanks in advance for the review!