Reverb pedals are more common today than they once were, but this one blew us away here at Backstage Music.
It's simple to operate, just one knob (for intensity) and one on/off footswitch. That's it. Simple.
It comes with a great hall reverb sound already loaded, but if you want to change to some spring reverb of space effect reverb, or something else, just hold your phone up to your guitar's pickup, and your selected reverb effect installs into the pedal, direct from your phone, to the pickup, through the cable, and into the magic realm. (You have to load the TC Tone Print app on your phone first. It's free.)
Here's part of what TCE has to say about this reverb pedal: