Excellent! 5 stars. Or maybe 1 star...

Amazon customer reviews make me terrified of buying anything!

I'm looking for a food processor for my parents.   Theaverage review is useless to me because the score depends on how useful the customer found it, not how good it it.  So I look at the actual comments.  I tend to look at the top rated reviews and the low scoring reviews.

On one hand you have the comments "This is an amazing device, since buying it I have found cooking a delight, I've managed to become the worlds greatest chef and have started to make serious inroads into world hunger" and on the other you have "This is a terrible decvice.  the blades jammed when i tried making breadcrumbs, I used it once an d a crack appeared.  The second time I used it it caused a nuclear meltdown and now the entire area for 30 miles is uninhabitable".

It bemuses me that some people have such troubles with a device that others seem to find so great.  What are the 1-star raters doing wrong?