In camera stores you will find the NX100 (probably due to the small size) in addition to the "Enthousists Compacts" how Canon PowerShot G10, Panasonic Lumix DMC-LX5, Nikon Coolpix P7000, and in the identical price category up to about 400EUR (rather or in addition to the Pentax Kx Canon EOS500 where they really belong because the sensor size).
The body of the camera is ok, other cameras have more grip, better feel and thus more "sensoric thrill". The workmanship is very good, tactile controls the super. The Battierieleistung is very good.
At the NX100 everything is in the right place. Operation and menus are logical and sensible. The handling is simple and well thought out by the new i-Function button and a full dial. With 2-3 handles it adjusts ISO, aperture, time or white balance. Sorry, the Sony NEX models are quite cumbersome to use!
ON and storage times are fast and responsive. The kit lens 20-50mm is "sunk", focussed quickly and provides not only good, but excellent sharp images. The 3-inch AMOLED display ensures even in sunlight still a reasonable estimate of the image section. The superimposed on the display image parameters remain legible. The ISO performance of the APS-C sensor (see above) far ahead of the cameras of the 1 / 1.7 "inch camera team. One gets about 3 f-stops, or photographed at 8x faster shutter speed (as ISO 1600 images are still excellent ).
Although the available lenses range is still small, but fine. Samsung lenses are reasonably priced. Example: the 50-200mm OIS lens there for about 169EUR. Olympus and Panasonic require more consistently. The camera is professional RAW Software (Silkypix), which otherwise costs 50EUR.
Conclusion: With the NX100 Samsung is a big hit. Who loves imaging performance and image quality, street photography operates, professional tools estimates and yet does not want to "always-factor" refrain from, should be on your left, the aforementioned cameras at current price.
He will wear the sharper sword with him!