The biggest grouse I have against the DSLR is that the image as captured by the sensor (once the shutter button is pressed), is not the same as the one seen through the view-finder.
The primary reason is that the aperture of the lens is not adjusted while the view-finder is active. The aperture is adjusted only when the shutter is pressed. Due to this, images that you see clearly through the view finder appear very dark once shot.
I know that I am carrying a lot of baggage from my bridge digital camera years (a decade to be exact). Adding to the weight of the baggage is the self-belief of being good photographer, but the reality is otherwise.