Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

It does an excellent job on mildewed wood such as decks and deck furniture without using chemical mode which is the only weak link in an otherwise strong chain. Unfortunately, the only effective chemical solution is chlorine which acts more or less on its own but cannot be used with this machine. Safe cleaners, such as Simple Green are no more effective than when used without them. Other than that, it's a great product.
Positive

The special effects are what you expect from the Transformers series, but the story line also is unfortunately what you expect. It's just more of the same disjumbled events getting thrown together. Some parts of the movie flow well, and others are just plain ridiculous. It's past time the writers & director for this series either move on or grow up and quit turning every scene into some kind of teenage behavioral prank. They've done the bumbling parents, the stuttering idiot Witwicky kid, the jive talking robots, and the goofball super secret ex-agent to death already. How about having grown adults who are fighting for the planet's survival actually act like it?
Negative

Bought two units and after a few months one stopped working. Could get no info from the unit it was dead. Contacted Sandisk and ask for quick replacement. Offered to prepay to secure item would be shipped quick. Was told I did not need this. Item was bad and would be replaced with in a few days. After waiting a full month, I had to phone the Co on Ca. Manager told me the order had not been shipped and this some times happens. Had phoned the supply house in another state and player would be shipped.Worse customer support I have seen. Would not buy another unit from this Co. Manager I talked with sounded like a brain dead stoner. Might be why orders get lost.Order with caution and if you require replacement, prepare to follow up daily.

Negative