Using and carrying a camera with a "hand strap" takes a little getting used to. But, once you do get used to it, you won't want to go back to the 'ol neck strap. It's more secure than a neck strap and gives the feel that you have more control over the camera.
I like using a handstrp rather than a neck strap. This Canon version does not work as well as the original HS for Canon film SLRs. Hard to install and does not allow as much hand movement as the old model. impossible to use in vertical position. If you like using a HS this is your only choice. I suspect I will have to go back to a neck strap in time.