I’ve had mine since 2016; been running fine the whole time. Only issue is that I’ve replaced the on-off switch; easily done. Used replacement.com to get the part. Seem to remember paying about $410. for it. I recommend it. I’m using as a hobby tool, not mass production.
I once tried "pickling" some wood. I'll have to look it up again, but in essence you paint the wood. It seemed to blend in to the wood; did not hide the wood grain.