
As former owner of 450D camera, I have to say that 60D has corrected many of that camera's annoyances, including much better evaluative metering outside in the sun or in more tricky situations (60d though in rare circumstances tends to underexpose indoors, when flash is not used, but there are another metering modes that easily correct this - you can change them fast on top of the camera). Further, jpegs are much better, they are sharp out of the camera, AF is (opposite to my sample of 450D) very accurate, colors are more realistic to those in real life, they are not dull (you can see much difference between various jpeg modes - landscape and neutral for example). 18MP gives very high resolution and detail, same as 1DX pro camera from Canon, for example. Video is also of high quality, handling is excellent, much better than old 450D. High ISO pictures are much cleaner than past xxD (or xxD cameras up to 500d) and you can go up to 3200 ISO for jpeg or to 6400 ISO when post-processing RAW images. There are some new features that are very convenient and useful, like wireless flash control built-in (even cheapest cameras from Canon nowadays have this feature, unlike in the past) or tilt & swivel lcd monitor. Now, you can buy good and powerful Canon-compatible wireless TTL flash (chinese made) for only 150$ and you can immediately start with wireless TTL flash photography with this camera - for this price this was unthinkable years ago. So you have to have that in mind when you think about buying older xxD model instead of this one (you lose great video capability, too). My only complaint about this camera is that LCD is not very color-accurate, i.e. tends to oversaturate reds, but this is perceivable only is specific indoor situations. On color-accurate desktop LCD everything is fine. You can always shoot RAW and post-process easily those pictures, ofcourse. That is an old Achilles' heel of cameras, but new pro cameras (like new Nikon D4 or probably 1dX too) are going to fix that and provide accurate colors and greater color range on camera's lcds, too. Also, I'm still waiting for one-click 100% zoom into the picture in Canon cameras. This can really save some time when reviewing picture's AF point sharpness on camera. Although dynamic range is good enough for most situations, i expect Canon to catch up to Sony here and provide even better sensors in future, so images' post-processing would require less time.
In short, this camera is excellent and mature semi-pro DSLR camera. In times when you can have much more compact camera than this one, with virtually same image quality (Sony NEX series)you have to offer something on top of that. Excellent handling, optical quality of accompanying lenses, wide choice of excellent Canons' or third-party flashes, battery grips.. are very important for profesionals or semipros. But for majority of people (and even for pros as second or vacation camera), future (i would even say nowadays actuality) are interchangeable lens compacts. They are much cheaper to have too, especially when you count in much cheaper (although weaker) lenses.
Review by Domagoj