iRig VS iRig HD : Sound Quality Face Off

How Doe The iRig HD Sound?

Very very good - it improves on it's predecessor in almost every way while remaining affordable and portable - a veritable WIN for IK MUltimedia.

Don't just take my word for it though - here's a Sound comparison video from The Garageband Guide - listen for yourself! 

What do you think? Which sounds better in your opinion? The iRig or iRig HD ?