I guess that the Grizzly shapers are ok, and I know a guy who has two of them and makes money with them. Still, they are not necessarily of the quality standard which I like personally. I bought a grizzly fence for my Delta shaper, and it wasn't square. I bought a Grizzly 454 20" planer and the crank handle wasn't right and I had to re-drill the holes to fix it. The motor on the planer had a plastic fan which came loose and had to be replaced. The knives are of soft metal and need to be replaced. I bought also a gauge, and the bottom wasn't flat. Guy at Grizzly said that they can't inspect but a few. Indeed, what you get is crated in China and you get it that way.
I still buy some Grizzly shaper cutters and some other small stuff, but will never again buy any machines.
I have not had their shaper, but have had good service out of a Delta, a Weaver, and a Ritter. I also keep a small Sears 1/2" spindle job for small detail stuff.
Best wishes, woodstuff