Works great, sounds great, in the original box, lightly used. It has an incredible amount of Boss tones in one package and the integrated foot pedal can be setup to control volume, freeze, modulation, delay, wah, and other parameters. It can connect to a computer for interacting with the device using Boss Tone Studio. The application can connect to an online preset library called Boss Tone Central for browsing presets and downloading to the ME-80 for free. It can be used with or without an amplifier. It has a built-in amp simulator that's engaged when a 1/8 jack is inserted in the REC OUT/PHONES connection. I've included a dummy 1/8 jack for using this feature as well as instruction pages from Roland and the Boss manual. This unit was only used at home or at church and it's been well taken care of. A Snark power supply is included. It's not the official Boss one but I've used it with this unit a lot and have never had any problems.