This pedal is amazing. Catalinbread is a really cool company, that really creates different pedals from one from other brands. To me, it is the best creator of digital effect.
This pedal is a mix between a reverb and a delay, and it really adds some mystery to your sound. It is primarily meant to be used through a clean sound / amp seeting, really embellishing the sound you will get, but it can also be used with more distortion, and you will get on the territory of David Gilmour in terms of sound (don't take my word as it is, it just reminds me a lot of his sound). I also use it after a analog reverb, and it works really well, especially on clean sound.
Moreover, it has been used for year by Richard Fortus for his clean sound.
To conclud, I really recommend this pedal if you want you clean sound to sound different, have a bit more wave to it.