In camera brand Canon is more or less very much populated company since I seen this photography market. I purchased this canon eos 600D with Kit lenses 18-55mm on Aug 2013.
Since I purchase and few of friend of mine also been purchased after my purchased all of us never faced any kind of bad effects/Compton of picture from this camera as an output.
In fact this 600D has slave mode flash functionality which means without externally attached anything, we can use/control external flash wireless which is very much useful and effective for professional as well as beginners who learn photography.
For studio works it offer good ISO range with great noise optimization.
*Some of the Advantages:*
Good Image quality
Good Video option(50X digital zoom)
Great ISO range with nondenominational Noise in Picture
Good weight distribution
Good Sound output,
Very easy to use.
*some of the disadvantages*
only 72dpi picture can be captured
canons lenses are quite expensive compared to Nikon and Pentax