In [this accompanying article](http://www.premierguitar.com/articles/20335-rig-rundown-keith-urban) *Premier Guitar* writes "A Fractal Audio Axe-Fx II handles all of Urban’s delays, reverbs, and modulation effects." At 26:33 of this “Rig Rundown”, Chris Miller, Keith Urban’s Guitar Tech shows us the Fractal Audio Axe-Fx II.more
I don't know if there's a better option out there...I'm still very new to this unit, but the Axe Fx is truly the best sounding box available, this thing came from the future. Impossible amounts of amp sounds, all of which are responsive and lifelike. I haven't broken it in live yet, but I'm sure it'll be a joy when that day comes. Can't believe I was farting around with a POD HD for so long when the future was out there the whole time. It's complicated, make no mistake - there's a lot of buttons and knobs and submenus, you can get beyond granular with all of it, but even the presets sound great for hobbyists who just want to plug and play.
I will never settle for less in my digital boxes, ever again.