well, the quad delay is a standard object in the axoloti software, as said, they are like 4 seperate delays, which you can mix together for a reverb sound 
i don't know how that object works internally, but it's an awesome piece for reverb!
and thanks, i'm also pretty satisfied with how the sound came out.
i also got to reduce the after effects on my DAW to a total of 3 wihich still sounds good (1x eq with alot of added high end (over 18DB boost at 20khz!), reverb (about 3,5sec decay), and a 3 band compressor) 