The Metal Zone kicks arse, and the Waza version kicks ever more. You get the standard 90s decimation, but with less noise and tighter and thicker attack. Flick it to the new 'custom' mode for a more open and natural take, still brimming with nastiness. 

Model: Boss MT-2W Metal Zone Waza Craft
Made: Japan, Jan 2022
Serial: B4N3698
Type: distortion
Power Input: standard 9v DC centre-negative (supply not included)
Accessories: original box and docs

Condition notes: used, no major marks. Tested and fully functional.
Overall: excellent condition (8/10)