But the size is a little disappointing

Just the right size for travel

The right size, not too big and not too small.

The original appeal of M43 was not only the smaller size of its cameras (which is now being matched by some with larger formats) but also the smaller size of its

If you contemplating moving into mirrorless cameras, and are weighing M43 versus larger mirrorless formats, remember that you are buying into a system, so consider the size, weight, and price of the lenses as well as sensor size and quality before making your leap.

The slower zooms are smaller and work well, particularly with the in-camera image stabilization, and are the right physical size for this camera

It looks like it should be much smaller, not the same size as the E-M5.I can't make a practical argument for owning this camera, but with a nice little lens like the 17mm f/2.8, it is fun to use and looks great.