I love a good chorus pedal and have owned at least 8 across the range from the classics to more modern.
The Fideleater is it's own special beast. It can do a beautiful standard, analog chorus. It can be subtle or lush in the ways you know chorus.
But this pedal is so much more. I enjoy using the random waveform at subtle levels of chorus or vibrato to get an almost warped tape style to my guitar. Similar to what the Walrus Juliana can do. The other waveforms are something to experiment with and can probably find 'that sound' you had in your head.
I love the untie switch. It completely changes the paradigm of the pedal. It causes an unexpected explosion of modulation glitches at the higher levels and you can get twinkling bursts similar to the EQD Rainbow machine when stomping it on and off at the right times. Turning up the depth and frequency can get self oscillating chaos with a touch of delay/repeating to it all.
All in all it's a mad pedal and I think playing with it yourself is the only way to discover the musical madness it can produce.
I can't fault it but would enjoy a version with presets; however that would take a lot of effort to achieve. Stereo would be interesting too.