Others say...

"definitely worth the cost"
This charger does exactly what it was supposed to do. I really like the fold-away electrical prongs -- that makes it fit in the camera bag nicely without scratching or damaging anything else inside. The LED indicator glows yellow while it's charging, and green when the battery is charged.

Some third-party batteries and chargers reputedly don't quite fit properly (i.e. they're not exactly the right size /shape to mate properly with the original equipment). Buying the genuine Canon charger costs a bit more than some other brands, but to me the reliability is worth the extra cost.

"Great Product - Great Price"
This product was exactly what I needed for my Canon HV-20 batteries. Works great on all the batteries I have charged so far. A whole lot easier than plugging up my camcorder just to charge the battery. This is a must have.

"Canon CHARGER for my EOS"
I found this charger easy to use, easy to carry, and quick. I love Canon products and Amazon makes my life easier.

"Great charger!"
I lost the charger that came with my rebel xti so I purchased this to replace it. It appears to be the exact charger that comes with the camera. Works great!

"This is the only one!"
As a professional cinematographer, I know batteries. The convenience in using these little chargers is unbeatable. Rather than have a big base AND a separate, almost-as-big power supply, you've a little thing that you can throw in your shoulder bag. Self contained, self monitoring, these are fantastic! It is SO much easier to keep your precious batteries charged now than anytime in the past.
Go with this Canon OEM charger. It is well designed, well made, is not that much more expensive and is very much worth it.