Feature:
The phase switch is very handy to cut feedback.

Quality:
The Aura is built like a brushed-metal tank! Very durable and tough! It will still be working when I am dead and gone, and the next musician should take it on the road.

Value:
Worth it!

Desirability:
Looks great, sounds amazing.

Sound:
The sound of the Fishman Aura Jumbo Acoustic pedal is amazing, as advertised! I have a Gretsch Sierra jumbo guitar, and could barely wait to get the pedal in the mail. I don't have an acoustic guitar amp, so I tried the pedal and guitar thru a Behringer bass amp and a Boss BR1600 digital recorder. I recorded 2 songs on with the Aura for MORAIMA and Bass Culture. I can hear the sound of nice mics with some sort of jumbo guitars, I suppose, and it sounds like different rooms, unless I am mistaken. Am I hearing different Gibson or Martin guitars? I am uncertain, I read something about imaging of different guitar woods and expensive mics. All I can do is try the 16 different sounds for whatever song I am recording. I can still hear the sound of my Gretsch, tho, which is great.

Ease of Use:
No manual at all, but I can't get a bad sound out of this product!

Support:
I have a Fishman piezo pickup in my Telecaster.

Overall:
I play R & B, reggae, world acoustic, folk, country, blues, and more. I will use it constantly.