I have a Shop Fox 8" paralellogram jointer and I love it. (It's a Grizzly with a different label.) The only problem I've had is the "trolley" wheel broke so it's no longer mobile. (I just ordered a replacement from Amazon as the Grizzly factory part is out of stock.)
If you can afford a Powermatic jointer, cool. And if you can find a good deal on a used example, double cool. But I almost never see good, used woodworking machines for sale in my area. When I do see them, they are way overpriced.
I often wonder if there's some OCD involved with woodworking machines. Ok, the underside of one jointer is beefier than another. That makes it heavier, but does it really make it work better?