Advantage Topical
I've been using Advantage for a few years, and it definitely helps with my cat's flea problem. It was really nice to be able to purchase this product for less than I normally pay at the vet.

Works fine
This product worked fine. We have an inside cat that is allergic to fleas and she gets them very very easily. After the first application she still has a few fleas but this is typical of any product we have tried so far. After the next application they will be all gone.
This product was also a lot easier to use than some of the others we have tried.

Advantage Ordered from AbsolutelyPets
While I know Advantage works perfectly, as I've used it before, I decided to order through Amazon, and specifically AbsolutelyPets, and wouldn't you know it, I just found a flea on my couch. Not only did they send me the wrong amount (thankfully, so I could get a partial refund for this non-working substance) it wasn't in the box, and I"m pretty convinced it's fake, since it hasn't worked at all. And now I get to go out and buy it from a REPUTABLE place, and will spread the word that AbsolutelyPets is AbsolutelyAwful.

Excellent End to the Fleas
To put it simply, Advantage is fast acting and very powerful. My cats got fleas from the new house I moved into and suffered due to them. The biggest problem aside from the irritation from bites was the dander and skin problems that arose from the fleas. After a single treatment, I stopped seeing fleas within 2 days and the skin problems were gone within the next few. This product is of course for inside cats only. My only complaint is that in its curent container it is a little difficult to apply on long haired cats. It is also a little pricey at retailers, but online it is cheaper you just have to wait for it to arrive. All in all an excellent choice for flea extermination.

Great flea control
This Product works best for my cats. The product was delivered promptly and in good condition.