I've owned/used a Harbor Freight surface grinder for about 7 years. Prior to buying one I spent about 6 months researching 6x12 surface grinders. I was concerned about the quality of the different brands offered. After a few months I stumbled upon a west coast import company that handles the 6x12" machines. Once I convinced the fella that I was not interested in importing machines, he started talking to me, and I learned from him that ALL import 6x12" surface grinders in the US, come off the exact same factory floor. The machines arrive at his port in huge crates of 36 machines. They are unloaded from the ships, the large crates are opened, and then they are counted out by which company wants how many. The machines that go to Grizzly, Jet, J&L, etc are taken to separate places in the warehouse, unpacked, painted, and company stickers/logos are applied. They are then repacked, and sent to the specific companies. The machines that go to Harbor Freight are never unpacked, just counted and forwarded to their final destinations.
In the end he told me that ALL import 6x12" surface grinders in the US are basically the same machines. The only differences are the paint and labels. So from this you can deduce that all you pay for from most companies are a paint job and labels. For example: You can catch the Harbor Freight machine on sale for $999, with free shipping, or you can go to Grizzly and pay and pay $1,839.00 for the exact same machine......for the extra money you get a different color and a couple of labels/stickers......for me its a no brainer.