No one asked for a 5 year trial simply a bit more use put to them before you start recommending them, I don't believe its a bad set at all, in fact its probably a really good deal from what I read, I think people would prefer to know that the set was rated by someone who had experience using other sets or had a comparison.

Then I encourage you to buy it and test it. Add your review after you're done and it will be for the greater good.