The NX1000 has the advantage of being much smaller than a DSLR, so you can carry the (almost) everywhere. He must still provide a small bag or wallet so great (or purse for you ladies). The advantage of the NX1000 is found adapter rings to mount almost any purpose (canon, nikon, and even M42). For use in video mode, it's great.
In photo mode, the device does not replace a DSLR, but it helps out for the "Photo every day." The autofocus is slow, the write time of raw files is too long (for my taste), but the quality of shots is waiting for you, and this is not essential for a camera ?