My B4 30W is better than expected.
My B4 30W arrived super well packed. Went together quickly. Was engraving and marking metal and plastic within 30 minutes (most of that time was setting up LightBurn). I'm very happy with this purchase and highly recommend. I was missing the the crank knob which Commarker quickly sent me a replacement. I've also ordered the 70mm & 150mm lenses.