I recently got the Penn State DC2000CF. It's made in China, and I thought the overall fit and finish were mediocre... I'd put it about on the Harbor Freight level, and in fact most of the major parts (other than motor and impeller) appear identical to the HF DC. But hey, this is a dust collector, and performance is what matters, not cosmetics. The airflow is very impressive, and I've measured the motor draw at almost 9 amps with the blower wide open, so it appears to live up to its rating.
Penn State also has an older 2 HP model, the DC250, which is rated for fewer CFM but has been reported to have better fit and finish.
I can't comment on the Grizzly G1029Z, except to say a lot of people like it, and performance should be comparable. However, I'm skeptical about their 0.3 micron filtration claim. All the other vendors of felt filter bags (Penn State, Oneida, American Fabric Filter, etc.) rate them at 1 micron. I don't believe that Grizzly has some magic fabric that somehow works three times better than anyone elsess. Penn State uses oversized 16 oz felt bags, and I'd give them the nod for filtration no matter what the advertising says.