yes, i have heard the borla hush in person. It actually sounds pretty tame. (i believe Mike's wrx at GB has the hush system) If i remember correctly, it had some, as you say "gargle" in it, as do most other cat back systems. but that gargle get's taken care of when you go with a catless downpipe. Dean's system sounds pretty good. If you're gettin a good price on it, i'd say that's the way to go... Unless you want to be sleeper, which would make the borla system the obvious choice. Reguardless, i'd say both systems are nice. It's all you man