My experience is very limited with actual product, but from comments/reviews I've seen, I wouldn't lump Grizzly in with HF products in the "quality" dept.
A lot of smiths use Grizzly lathes...I know of none that use a HF.
07 FFL /Mosin-Nagant Custom Shop/Bent Bolts
Genuine Cerakote Applicator- ALL FIREARMS
General Gunsmithing and Re-Barreling, muzzle threading and brake installations