not impressed with mine at all, 1st it came with a PCB where did that come from? it wasn't advertised as having one and the hype said it would be otherwise
then it took out the house breaker after about 5 hours of light use
its been sat on a shelf since then and I finally got around to looking at it and so far have discovered dry joints, sheaving melted into solder joints and floating resistors soldered onto wiring that were shorting out tube terminals.
just my experience nothing more