Upgrade from OP300?
ashhs — 4 out of 5 stars
I have both the OP300 and now the OP350. Although the newer OP350 has more functions, I feel that the OP300 is better built and cooks slightly faster. When using the roasting lid on the OP350, the whole unit vibrates and makes a whining noise. I tightened all the screws and it was better, but not like the OP300 which is made from more solid materials. The old pressure cooking lid is also much heavier. But overall it still does as advertised, just not as well.




