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

[EX Q]: About four weeks ago, I purchased at a Home Depot in Florida the Plasplugs "Master Tiler", model number: DWW180US-BX.I am using it for a porcelain tile installation. The original blade worked ok for the initial cuts, but I need to replace it for the proper blade type for the tile. I had bought a porcelain tile replacement blade from a blade mfr when I bought the saw. When I got around to replacing the blade, I found out that the Plasplugs machine uses a different "arbor" than everybody else. The replacement blade was worthless to me.I then called the Plasplugs US office to order the "high glaze" blade. Much to my chagrin, I was told the "all blades except the standard have been discontinued".I just bought this saw four weeks ago! I think it is very irresponsible for a manufacturer to behave in this matter.You can be assured that I will avoid any Plasplug product in the future.
[EX A]: Negative

[EX Q]: This toy has peaces that fall off even while puting it together it kept falling apart the legs would not stay on and part of the tower would not stay together. I would not recomend this toy to anyone else or pay for it again myself.
[EX A]: Negative

[EX Q]: This bra is completley worthless! It offers absolutely no support, is cheaply made and does not run according to size. Don't waste a penny on this. You will be disappointed.
[EX A]:
Negative