Product review (4 stars): it actually works
Now, after years of wondering, I have finally figured out why my Mom had put knifes and forks upwards in the dish washer :-)
To keep it short: The process is a mess and the dishwasher and the house will smell pretty bad like paint remover for a while.

Now the result is great though. It covers the rusty parts like a rubber glove and it seals the rust.
So far it has not been showing signs of new rust on the parts treated and it has been about 2 month since treatment!
Compared to a really expensive basket replacement it was worth every penny.