I used this one for one gig and it worked great, Had a killer sound I have changed to a Headrusch Gigboard since that gig and now bought an Amp1 so I have yet to try this Black Truck with the Amp! Iridium.
It took me a while to understand how to use this product that is why handling only got 4 stars, but then again I never read the user manual so it might as well just be me that is a 4 star :)