Im a guitarist myself!
and I have the VB-2 and the Memory Man, when I heard the tracks no doubt he was using some studio outboard-software gear that studios use but having seen him live a few times he switches the VB-2 on for a few songs ie-Locked out,ect, the Memory Man has a lovely analog wash of delay and vibrato, hit a few notes and its instant Dont Stop Now!!!Riff!!
Though the VB-2 is the real deal!! its kinda got a less harsh vib to it,when two guitars are playing together one straight and Vibrato you get a nice ocilation(Spelling!)spread!and create some interesting soundscapes!