Just got the Gator, and I LOVE it. Best case for the SX on the market. Spacious, yet compact. Great carry handle - lots of storage, beautiful, plush interior. This one's a keeper. I have more compact cases that I prefer for my Korgs, but the Yammie is a few inches deeper than the Korgs, so this bad boy is the answer.
Don't hesitate, if you're thinking Gator - it's a great fit, and a terrific product.