I have a Janglebox JB3, Xotic SP and have used several high end opticals. The do not approach the sound of even older units like RCA's tube units and Manley' rack systems for a couple reasons: 1. You simply can't compare $15-400 stompboxes to $5k and up studio units. 2. Studio units, as has been previously noted, don't work on the front end of the signal *before* the amp. They process the *entire* amplified (or emulated) signal. Better recorded material like that YouTube video will have likely been compressed in post, not have the guitar signal compressed between guitar and amp. It's apples and oranges.