Yep - very very impressed with that camera. It's just a steal. Very good in low light (up to 2000 iso or so), and the 1080 slowmo is great up to 800 or so. And man - it KILLS with 1960's Canon FL glass on it. Luscious. Working on a full set of vintage primes. Scored a mint condition 19mm 3.5, a legendary wide for low distortion.
Seen the "NX1 vs. Ursa 4k mini" tests yet? OK, the rolling shutter takes some thought, but for a $1k body that can take about any lens ever made? Man.