I like the flat shape w/ texture that reduces slipping

Good capacity and great shape.

But the sleek design and flat shape make it easy to pack and store and having the second charge has really come in handy by comparison to the one charge candy bar power packs

I didn't want to buy one of the small round chargers because that shape would not be comfortable for me to hold or to pocket

The shape and size is perfect

great slim shape

Good size and shape, fits perfect in my messenger bag and in my pockets when I need to

The rounded shape feels good too, adding a "right" way to hold it

Not only is this a high capacity battery, but it's compact and ergonomically shaped.

I have had several ANKER portable chargers, purchased as gifts as well as for myself, but this one is easy to hold with the phone

Don’t think about it just buy it cause it is so good and charges your phone as fast as it can

Do wish it would charge my cell faster but nothing is perfect...then again this is as close to perfect as you can get.