I have a Boss DE 200. Yes, it is "so 80s" as it was bought new in the 80s! It's a rack mount, 120v plug-in type effect that includes digital delay and chorus in one unit. I rather like this unit, because I can adjust the delay and/or chorus so as to be barely noticeable, using the controls on the unit and the FX loop mix knob on my Nomad 55. In this way, I can use a a few quick digital repeat "echos" muted by the amp's FX control as a substitute for a reverb in a "dead" room. And the same for the chorus, on tunes where it is appropriate.
It is not really a pedal, though, as it is a rack-mountable device. I don't use a rack anymore, as the only effects I like for use on my Nomad are this unit and an MXR KFK graphic EQ.