This is a stompbox effects unit from neunaber audio effects, a brand highly praised by discerning guitarists like Mateus Asato for its overwhelmingly high-quality spatial effects. This set allows you to have 4 effects and 2 presets, for a total of 8 different tones. You can download your favorite effects like reverb, chorus, echo/delay, flanger/phaser, and shimmer using the Expance app, which runs on Windows or iOS, with the Slate V2 unit. By connecting an expression pedal, you can store up to 4 types of effects. You can select between the 4 types with the left footswitch, and select between the 2 presets with the right footswitch, allowing you to call up a total of 8 effects at your feet, making it a compact spatial multi-effects unit. The sound quality is incredibly transparent and natural, but depending on the settings, it can provide a wide range of high-quality spatial effects, from grand to fantastical. If you're interested in spatial effects beyond the reverb built into your amp, this would be a good choice. (As a side note, this set is currently being sold at Ishibashi Music for ¥49,800) Please consider it. Multi-effects Neo-soul