Product review (2 stars): When they actually have the anti-microbial coating, they're great!
I bought a 180-pack in late 2011, thinking I would save money through economy of scale.  In June 2013, I started noticing that the odor control stopped working.  I thought there must be a shelf life issue.  Then I looked at the remaining 1/3-box of the bags, and realized that the remaining bags did NOT have the anti-microbial coating.

What's more, I ordered a smaller combo of these bags, which were advertised as anti-microbial.  I received regular bags, so now I have to return them.  I am done ordering these from Amazon.  Great product, but whether you will receive the anti-microbial bags is a crapshoot. This is corroborated by other reviews.