Not one to bash any Brand of Cameras though I dont seem to have the greatest luck with the little Olympus E-M1 model.

Bought my first E-M1 in late January this year and had problems with the rear dial/wheel spinning around and I could not set the aperture when shooting Manual.
Took it back three months later to where I bought it, and they replaced it with a brand new camera.

I was happy about that at the time, though read every post on here when Members asked about this camera.
One Member actually send me a PM asking if I could see green spots in the viewfinder I said No, and to start a post when I searched on line and seen many owners had this problem.

In time my E-M1 also developed these green spots and I rang Olympus to be told they had never heard of that problem, that strange I replied as there is plenty about these spots on the www.
Lovely young man told me to send my camera in and they will look at it, and as we were going away for a two week holiday it was not a good idea, so I would do that when we got back.

While on holiday I noticed that the rear dial/wheel was starting to spin again, not all the time like the first E-M1 did though enough to annoy me when setting the aperture so I started using it on Auto
As it is not my primary camera that was ok for holiday snaps though prefer shooting Manual.

Then I noticed that the Vinyl on the hand grip was peeling off, so I packed it up till we got back home then took it to where I bought it.
By doing that I saved a fair bit of money on Postage and Insurance to Olympus in Sydney, and was told it could take a few weeks if they dont have the parts

Four week later I got a call this Thursday evening actually to tell me my camera was fixed and to pick it up any time.
Collected it yesterday morning and took a few shots on the way home it seemed ok though I realised I have forgotten a few things over this time.
Looking at the many pages that came back with it, they Replaced the Mode Dial, Replaced the Grip, Repaired the Viewfinder and cleaned and tested all functions.
So to me this is better than getting it replaced with a new Camera as everything should be working correctly.

If any Members who own this Olympus E-M1 start getting any of these problems do ring Olympus for help.
They have been very helpful to me at all times from Day 1 with the first camera, though I am glad this camera comes with 2 years warranty.