Depends on what you are wanting. I personally went with the 5150iii because I wanted a particular thing for a project. I do love the jam as well. I think the 5150 is more up front and immediate, slightly more in your face and more versatile then people give it credit for. But the jam sounds awesome as well, gobs of gain and I loved the saturation. Looking back I could of one either way and would love to have a jam some day
