People should always try to "read between the lines" when he posts a review (I think he's said as much himself at times) And that's good advice with any review from anyone of course! There is value in there, but important not to get carried away.
In a "sponsored" review, don´t be over-enthused. Don´t put the product down, either - try to figure out who might like it/need it if you don´t.
And if there is a quality issue (other than that, there is not really a bad product, just many you don´t find fully convincing) contact the manufacturer instead of spreading the word