Years ago people had a pop at the comments that lady above made and at the time IMO she completely justified herself with the quality of results she provided.
Ah Ha! found a link with examples...
Sometimes arguments are best solved with examples. The ‘argument’ in question is the repeated and erroneous assertion that micro four thirds equipment cannot replicate the look of full frame photography in normal professional usage
www.lindsaydobsonphotography.com
The problems I can see with MFT as a happy amateur are as follows...
- Low mp count, some people demand high mp count cameras.
- A lack of DR when compared to FF cameras and I do see this myself with MFT being more susceptible to blowing the highlights.
- Grain is perhaps visible at base ISO's whereas with FF you get a smoother look.
- When compared to FF the high ISO's aren't so good.
- Panasonic persist with DFD focusing which some say isn't good for tracking subjects but this doesn't affect me as I don't take pictures of birds in flight or fast action.
I'm sure you'll be able to google your way to many nice examples from many different people.