This replaced another brand amp which was giving me problems. I was going to get a more expensive, more powerful amp from the same manufacturer, but thought I may end up with the same reliability issues. Reading everything available, I decided this was a better alternative. There is nothing complicated about this head. It's easy to understand, simple to operate, and gives me a great sound. I'm confident in the GK line and am happy with this choice. I know it won't let me down, and that means a lot.