Who can do without the viewfinder should perhaps wait for the Samsung NX300. This is currently being presented at the CES in Las Vegas. When NX300 is a touch screen for use and a more powerful processor. If you have to enter text is a touch screen of choice and the choice of settings is simplified.
Too bad also that it does not offer a better lens surcharge. The supplied Zoom can not keep up with the resolution of 20 MP of the camera sensor.
Otherwise, you get a great camera that delivers image quality comparable to renowned SLR, but is significantly lighter and more compact. This applies equally to the Samsung NX20. Only the lens selection is relatively limited.