Down the Rockabilly Rabbit Hole SpruceTop Goes! I just got a
Strymon El Capistan dTape Echo to simulate that Sun Records slap-back echo made popular on early Elvis, Johnny Cash, and Carl Perkins records, and Boy! does it do the job! Not only does it do slap-back echo but it can replicate the varying-length delay times and repeats of single and multi-head tape machines, and it can also do it with the tone of varying tape-related wow and flutter, and tape aging! It also does "hard" reverb but does it musically. The delay effects sound warm as you'd expect from tape-derived delay effects and El Capistan can also be used to create musically toned delay effects for any kind of music, old to new. Leave the hassles of tape-based delay machines behind and get your tape tones done digitally by the El Capistan.
If you're looking for a simpler less involved echo/delay pedal, they're available from other makers for about half the price of the El Capistan. For me, the Strymon El Capistan dTape Echo pedal is a worthwhile purchase and a winner!
Strymon El Capistan dTape Echo Pedal