I've got the Pulsar (and just about all other patches available from PedalPCB).
It's a really choppy stutter effect with 2 controls: rate and something like a release (ie, you can set it to a slow chop and it will sustain for a long time if you want).
I didn't like it at first, but it sounds cool when you dial the mix back and use it as a background effect. Also cool on keys.
The idea is that the tremolo hits the delay with quarter notes that are synced with dotted eighth repeats. It can be a bit finicky at times, but when everything falls into place it's a pretty cool effect.