I have a Griz lathe, and it is so bad that I cannot make a lathe out if it.
I got it new.
They shipped it with a broken belt shim, I called, and they got a new one out to me right away.
Griz could not stay in biz if that were typical or occasional.
I have a freakishly bad example where the gibbs were over cut into the castings and cannot be fixed. There are giant voids in the casting filled with bondo and painted over.
I use it to spin an arbor and wife wheel, which it has done well for 10 years.
I have some tool bits and table saw blades from Griz that are also unusable.
But much of the stuff form HF, ENCO, and CDCO is not useable.
The Chinese junk is so cheap, there is no alternative, but to take a chance, unless you have money like Boeing.
The word 'forum" does not mean "not criticizing books."
"Ad hominem fallacy" is not the same as point by point criticism of books. If you bought the book, and believe it all, it may FEEL like an ad hominem attack, but you might strive to accept other points of view may exist.
Are we a nation of competing ideas, or a nation of forced conformity of thought?