Comment: It was a piece of junk, unfortunately (Score 1) 96
I took the time to register about 50 products for my Mother's site victoriantreasury.com that has some handmade products - handmade valentine gift cards based on real antiques in her collection. Anyway the site shows up on the top page of google's results so I thought it might attract people interested in buying in this niche area.. she's really a collector and runs a collectors' society so it is not like Hallmark or anything. But it seemed it would be a perfect long tail kind of niche to fit Google's merchant area.
Well, despite even having to update the spreadsheet more than once as rules changed and putting much time into it, we never got many hits and finally when it recently seemed like it should start working the results list got filled with other vendors spamming tons of identical products to the point that our company didn't even show up in the list of vendors. The engine was very susceptible to be gamed. If they did an ounce of work trying to make a serious engine I would not begrudge them a percentage of any sales made but as it is, I am sorry I wasted my time on Google which you never know if they are going to stand behind a system they build or trash it the next week. Sure glad I didn't get into Google Wave, either. Maybe Google is its own worst enemy?