- while lacking the green/amber light on the end of the plug, it *does* have a bright blue LED on the brick itself. the LED doesn't change color according to what the powerbook is doing, it just indicates if the brick itself has power.

- it produces 2 amps, rather than the 2.65 put out by apple's. this means that while it's ok for older ibooks and tibooks, for the new albooks it's slower to charge the battery if the machine is on, and for some machines like the newer 17", may not be able to charge the battery unless the laptop's asleep.
(this can be annoying at times, but for less than half the cost of apple's adapter and cheaper than most other 3rd party adapters, I think it's a fair deal)

- the wire on the powerbook side twist-locks into the brick, so you can't yank it out accidentally.

- no, the plug isn't grounded... but then again neither is apple's flip-out plug.

overall, I think this is a pretty good deal, and might pick up another.

Accidents will happen. $500 dollars later, with my 12" powerbook 1 GhZ (purchased October 2003)repaired and with the internal pin shorn from inside the power connector, I started to explore alternative adapters, given that the Apple unit is around $80.

I bought this unit--which I needed quickly-- with one day shipping and my total was still signifigantly less than purchasing another adapter from Apple, some $51.

Sure, it doesn't have all the bells and whistles of the Apple unit and it is a slight bit slower to charge the laptop, but the price makes it well worth it.

If you are concerned about the plug fitting your computer, I've tested this unit out in my 12" PowerBook, a 14" Ibook, and even an older 15" TI Book--it fit them all and charged them, though I don't know how quickly it charged the 15" TiBook.

The plug is also more reliable and sturdy. The cord is longer and less obtrusive than the mac power adapter--if I'd had this unit before, I don't think I would have even had the aforementioned accident! The Macally unit bundles nicely and fits most laptop bags well.

Overall, I'm very pleased.

The power cords for Powerbooks and IBooks, though aesthetically lovely, are prone to damage. This is a good replacement unit, although it lacks the amber/green LED charging indicator ring around the connector. Makes up for it in durability and value (less than half the cost of Apple's - yikes!). I'm using this charger with my 12" 867Mhz G4 with fine results.

At less than half the price of an Apple charger, Macally is a nice alternative. When my ibook charger's cord broke, I wanted to find something more durable. I miss the little feet to wrap the cord around, but the part that connects to the ibook/powerbook is thicker than Apple's and thus doesn't need quite as much care. Macally's charger is also white, which is a pleasant bonus, and comes with a blue light on the brick to let you know it's charging. Here's the basic breakdown.

Macally:
lighter
cheaper
more durable
same 120/240 voltage
same length (when compared to Apple's w/ the extension plug)
no feet
no charging light around rim of plug
no plastic cover for plug tip (though the Apple one fits on it perfectly)
the connection to the brick is not as sturdy because Apple's is built in and Macally's is plugged in, though it's never come out unexpectedly because the brick is so light.
doesn't get as hot as Apple's charger
the wall plug is not grounded

If you need an extra or replacement charger and don't mind the difference in design then this is a great purchase.