I bought the M20U (about 2 months ago) as a secondary cam, after purchasing the Canon IS S1 (wonderful camera), for a camera to have with me always. Obviously this isn't the "best" taking picture camera out there, but for the compact size, and I stress compact, it's smaller than a credit card super thin, and has a very durable steel body, and a very decent MP3 player, it was perfect for my needs. A camera to have anytime of the day or night (what good is a shot you could take if you have no camera at all). The flash isn't super, but adequate for portrait shots. Also, Casio really adds alot of features as mentioned above to this tiny cam, especially the auto lens cover. The picture quality is good, not great, it would never replace my S1. But if you want a camera to have with you all the time, I would recommend this tiny companion. If it's for your main and only camera, you may want to consider Canon or others. But as a complimentary camera, its perfect. I use the MP3 player everyday while im at work. I love it.. I tried the Pentax S4, ok picture quality also (the fuzzy corner issue there), but more expensive at the time and actually double the size of the M20 (depth wise) plus no MP3 player and macro. I wanted a camera that would fit in any pocket, shirt or pants and wouldn't notice the weight or bulk of it. Again, I would recommend anyone that can find one, try it out, it's a fun, fast shooting camera. I've got shots I never could have with my S1. I was really amazed how fast this thing can shoot. No AF lag whatsoever, and start up is fast, real fast. Great battery life also. I listen to my MP3 7 hours a day with life to spare. I usually charge it each night though. (...). Great site... Only cons, is, no optical zoom (never use digital zoom), but not a big issue, just move closer if possible to the subject.

Hope this helps someone out...

This camera is simply fantastic. Not only is it stylish and slim (will fit in your jean pockets with easy) but also takes fantastic pics, with great resolution even at 20x12. My grandfather recently bought a 4MP Olympus and he had to conceed how little difference there is in image quality. Unlike some more expensive cameras it also takes movies with sound and can be used as a dictaphone or sound recorded.

And if this wasn't enough the camera sports a cool MP3 player, allowing you to use the device as a music player with storage capicty limited only by the size of your memory cards.

The build quality and features have also improved since the M2/S2. Battery life is greater and the interface and controls are allot better.

This is a great little camera for quick shots but actually had less resolution even on the highest setting than my dinosaur of a 1.3 mp Olympus. Also, movie mode audio track has a lot of digital noise. If you're after a fun all-rounder, however, this is a great camera with a fantastic user interface and design