I still have and use my original Flanger pedal from 1978, even though I own a room full of ADA Rack processors that can produce the Flanging effect. The pedal is the quietest Flanger I have ever used and the biggest issue I've ever had with it was this: I wouldn't know if the effect was on until I played my guitar!
My only suggestion for the new pedal, if it's just as quiet, would be to add an LED indicator for the pedal status.
I still consider the old Flanger pedal to be the best one ever made! 
Harley 
Hey Harley,
Thank you for the kind words! The new PBF Flanger is quieter than the original and it HAS a status indicator! See more info here: http://adaamps.com/store/products/modulation.html
Hey ADA Amplification,
Quieter?!?

My old original pedal is dead silent already, and a lot of studio engineers have offered to buy it from me in the past, but I wouldn't sell it. The Flanger is an effect I like to use with my leads along with some delay echoes to add a dimension moving space to the notes. The Flanger adds a swirling dimension to the echoes when I add it lightly.
Of course I'll definitely have to get the new PBF Flanger, (As if I didn't already own enough ADA gear), just because of the size and quality of the effect itself! It'll come in handy for a suitcase pedal rig where racks just aren't an option.
***Just an application tip for the Flanger: I like to place mine in front of the Wah pedal rather than after it. Not the usual effect chain setup, I know. Then again, on the Flanger, I set my Harmonics to "Odd" because I'm a bit odd anyway

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( I'm going to have to get some new pics of My ADA gear to post here since the Old Depot pics are lost. Gotta get a better camera)
Harley
