This is a tape slap back delay with a bit of wobble (kind of emulating a Strymon Deco) going into a heavily filtered and warbly long echo that is set to a very low mix and heavy cross fade.
Program is set for stereo, so increase the mix of the delay if using in mono.
Dude, the 50’s Slap Preset is fantastic. I like the “Sproingy” short repeat/s.
Nice program rustydutch. This one is fun to play.