It's a normal reverb, with tweakable mix and decay, and two tone settings. You can also add saturation (up to distortion if you like) to the reverb signal, so there's a lot of versatility just in the basic settings. Has a gated input so it's really quiet. Very small, plugs on top, fits in any crowded board, for sure.
so why 200+ euros? Well, there's another side to this pedal. You can move the gate to the output, so it cuts the reverb abruptly when you stop playing, making a glitchy sound "sucking" effect that sounds amazing, specially if your into experimental ambient stuff.
And the cherry on top is the expression function. Together with the pedal you get a pressure pad (the Igor) that works as expression, so that you can bring the reverb to your playing when desired. All this in a mini micro thing of a pedal.