The Grizzly Tools range from very good to very poor, ( Some are as good of Quality as General International and Jet)There casting quality is something to be desired as they do not let there castings cure before machining.
A lot of there tools are made in the same plant as many other name brands and some of them are not as good as others. There motor program is something of a different story, some of them make good vibrators for equipment and some just don't run very long at all.There all white machines with the cast grizzly logo are there top of the line units and some do perform very well.

As to return if you press hard enough they will take them back as i was in the same situation with 6 machines from them approx 9 years ago. They had bad warped castings and tried to use loctite
retaining compound to take up machining tolerances in spindles ect.

Do Remember that back in the late 1990's when the US outsourcing went into full swing the Delta Line was purchased by Black & Decker of Hong Kong,which took the Tupilo Miss. Plant to nothing, Shortly after that the Powermatic Plant in Tenn was purchased by Jet and Closed.The list goes on and on.

I have a jet horizontal band saw and also a Kalamazoo 7A saw ( Old school will run forever). these to perform excellent in my metal shop.