I was pretty excited when I found this app, but my excitement was quickly changed.
I started to publish my products too Google and it returned in all my products showing an error.
I read that if you have multiple varients (multiple colors and sizes) this isn't a great app to use because it will mess up or just show one varient of your product. I have multiple styles of shirts, 6 sizes for each of my shirts and 10+ colors for each.
I've deleted the app and restarted everything from scratch. I've now been publishing my items to Google for over 2 hours, which seems way too long.
If it ends up publishing everything right, I'll change my 2 star review to a higher rank.