Summary: Also, the EOS suite of software is not fully compatible with the camera. Live View through the USB cable to a PC does not work at all, for example. Every other EOS has this function, but there was no mention it was disabled from Canon on this camera.
Pros: Cool little camera. Small, light
Cons: Horrible autofocus, it is both slow and inaccurate. There is a bug in the design of the camera that often requires you to detach and reattach the lens before it will release the shutter. This is a known issue but Canon has not issued a fix for it.
Conclusion: Like many others I purchased the EOS M around Black Friday at what I figured was a steal. It's incredibly well built and has every feature one could ask for. Obviously the most glaring issue is, of course, the slow autofocus. Not sort of slow, not relatively slow to other cameras...extremely, almost throw-throw-it-in-the-garbage, slow. As big and relevant of a camera corporation as Canon is I can't imagine how this design could leave their engineering dept?
Pros: good battery life, Nice features/settings, Quick Start-up time, excellent image quality, Superior build quality, Bright LCD, Lightweight/Portable, Simple controls/menu, easy to use
Cons: noisy, horrific autofocus, terrible firmware support
Cons: The camera is the wrong color, the camera is not a USA market product, the kit is a broken up larger kit. The camera arrived very late. A tracking number was created, and my credit card billed 6 days before it actually shipped.
Conclusion: I bought the EOS-M on "Black Friday," in great part because I was highly encouraged by proclamations that its firmware update Ver. 2.0.2 increased auto-focus (AF) speed and accuracy. BAD NEWS: I am very disappointed in slo-o-o-w auto AF--which too often has caused me to miss great moments. The 22mm lens is slower to focus than the 18-55mm. In fact, my wife's average quality point-and-shoot focuses faster and more reliably than the EOS-M with any lens attached.
Pros: Nice features/settings, excellent image quality, Superior build quality
Cons: Missing features/settings, Slow Start-up time, Short battery life, slow auto focus
Conclusion: Image quality is not bad. Gets pretty noisy past ISO 1600. Touch screen interface is great, screen is awesome. Controls could use another dial, but manageable. The fact that it takes EF lenses with an adapter is fantastic. Terrible AF. I don't think I've seen a recent compact that was slower than that. iPhone is faster. Bright light, dim light, ANY lens... It's all around 1 second on non-moving subjects. WAY worse with the EF lenses.
Pros: excellent image quality, Superior build quality, Bright LCD, Lightweight/Portable
Summary: This camera give high quality pictures when you could see them but the screen in strong sunlight made picture composition impossible and the battery power was only just acceptable when the screen brightness is turned to maximum two batteries will always be needed