I have had my Canon 5D for a year and half. Picture quality is great and plenty of features to customize your photo taking. 5D is the first full-frame DSLR camera with a standard body size, The full-frame capture of the 5D allows for relatively low-noise photography at high ISOs. This allows users to take pictures in low light, and also captures high levels of detail in the shadow areas of bright frames.
This camera is highly recommended. Specially now that is about 25-30% lower than what it was a few years back.
My collection: 16-35mm, 24-105mm, 70-200mm, 180mm macro and 2X