BHJ Dampers = Good or Bad?

I'm looking to dump a small fortune on a harmonic damper for my externally balanced 360. I have a line on a BHJ damper that's SFI approved and includes the counterweights and everything. I just don't know much about the brand and was wondering how they would compare to a company like ATi? Give me some feedback please! Here's the descriptionBHJ - "A" engine - External Balance - SFI ApprovedAdvanced engineering features make BHJ precision harmonic dampers the first choice in vibration control:-Size for size, BHJ precision dampers are lighter than competitive designs-All externally balanced BHJ dampers feature machined counterweights - no bolts to break or loosen-BHJ dampers are marked from 50 degrees BTDC to top dead center in precise 2-degree increments for accurate ignition timing. 90-degree marks are an available option.-Every BHJ damper is custom engineered to fit a specific application. All critical mounting dimensions are maintained for pulleys and accessory drives