OM-D EM-5 as an every day, all around camera?

Sergey Borachev wrote:

It may have more DOF in a relative sense, but a smaller sensor has less 'DOF Control'. The reason is diffraction comes earlier as you stop down the lens and therefore you have less range of aperture values to use to get a sharp photo, for the same speed lens, etc. So, you lose the amount of Control you have over what DOF you can select. Maybe it should be called Aperture Control, but most people have used this term "DOF Control" to mean the degree of control over the aperture selection (which affects DOF). Clear as mud now?