Potentially - see quote below. That said, the warranty on the Spirit ii is better (10 yrs everything vs. 2/5/10 yrs on the Spirit i, depending on the part). Do you prefer having a cart door or having it open?
Expliciate wrote: ↑ The original Spirits were made in the USA. They used better materials and had better quality control compared to the newer Spirit IIs, which are now all made in China.
All of the Genesis II except for the E310 are still made in the USA. I had a chance to take a look at the Genesis II E-310 which is now made in China, but the quality drop isn't as bad as the transition for the Spirit line.
If you get the chance to compare them side-by-side in person, I'm sure you'll feel and notice the difference just from opening the hood and knocking on the metal pieces, etc. It's easier to differentiate with the product at hand.
In terms of how they compare with quality:
Genesis II E-330+ (USA) > Genesis II E-310 (China) > Spirit (USA) > Spirit II (China)