My A/OU arrived right before I had to go to a practice this week so I threw it into my signal chain for the night. This meant I didn't get to play through it as much as I'd liked but did get to run it both in the band mix and solo right away.
I normally use a Spector for this band but for giggles I used a Schecter dUg Pinnick signature bass instead. The Schecter doesn't have an active preamp so to get it more into the Spector's hyper-active bass tone range I added a B7KU to my chain and ran it clean into the A/OU. This chain all went into the Tech 21 dUg Ultra 1000 amp head into a LowDownSound 215 loaded with Faital speakers.
In short, the A/OU is so, so, so good. I own and like both the A/O and A/Omicron too but the A/OU takes what those pedals can do so much further. The graphic on the A/OU is a game changer for dialling in the perfect distortion tone.
This combo of gear sounds MASSIVE. @gregmon79 you will dig this pedal. Of course the A/OU is not extremely different than the A/O, they're both built from the same base tone, but the Ultra's feature changes over the original A/O are significant enough to really up it's versatility. I'll comment more when I've had a chance to experiment with it using other basses and into other amps too, but I have to say my initial experience with the A/OU (post NAMM) was excellent. Really rad distortion pedal.