Demaestro - 10:10 pm on Jul 6, 2010 (gmt 0)
dam piatkow I was going to say it isn't slander if blah blah blah is a vacuum company. You stole my joke.
Of course IANAL but my understanding is that reviews and opinions are expressly protected in many areas of law.
Your right to express your opinion outweighs their right to exclusive use of their product name.
If they have a claim of exclusive use of that product name it would fall under Trademark law, which revolves around avoiding confusion in the marketplace.
You are not using their trademark in a way that would introduce confusion into the marketplace and you are simply giving your opinion in a review.
They have nothing on you unless you live somewhere that doesn't see things that way. Maybe China.
I wouldn't reply to them at all.