This pedal has been called the 'Strymon killer', which is a big call... it surely does a lot of nice reverbs though, you can count on that! The Space Echo mode alone is worth the price of admission.  

Model: Boss RV-500 Reverb
Made: Taiwan, recent model
Type: multi-mode reverb
Power: standard 9v negative supply
Switching: true or buffered bypass
Draw: 225mA approx
Equivalent new street price (approx): $475aud
Mods: velcro added
Accessories: original box and manual
Condition notes: used, no marks to speak of, excellent condition

Controls
Best you have a look at the manual here on this one, there's a lot of controls on deck!