The M583 is a pretty good camera for the size. It's thin & lightweight, so, carrying it in your pocket isn't too bulky or intrusive. Also, the strap is big enough so you can feel it around your wrist, which makes for good peace-of-mind. What I'm not crazy about, is that the On/Off & Record buttons for video are close together. More than once, I've unknowingly recorded video while I thought I was in camera mode. No big disaster, however, video will fill your memory card faster than pictures, and drain your battery life.
The view screen needs to be cleaned of fingerprints a lot, but I guess that's to be expected, and doesn't really hamper the quality when using the screen. Beyond that, it has a decent size view screen, and it turns on quick for those moments that seem to happen fast when you need to snap a quick shot.
I also like the various choices for functions, i.e. Close-up, Night time, Dark room Sepia, etc. It also has the Easy-Share function built-in, where you connect to your Pc, and upload directly to several different social/picture sharing sites, which saves a step or two, if you're into that sort of thing. I give it 4 out of 5 stars, and would recommend it to someone looking for a good camera to carry around.