I have driven my nios DT petrol for around 8000km now. The car in it's segment is the best looking car in my opinion. The interiors quality is far superior than it's rivals in the segment. The touch screen operates smoothly without trouble. Car offers best thigh support for seating comfort. There is almost no engine noise in the cabin. Wireless charging port is an additional advantage.
Now talking about drive experience I have absolutely no complaints. I never have actually calculated the mileage but in the display it consistently shows of around 20.5 to 21.0. It at times in traffic has dropped to as low has 14.9 but there has been a time when it has showed a reading of 26.5 has well.
Only thing that Hyundai could improve is it is a little bumpy on the rear seat. Front side is fine.
Secondly I think hand brake is lighter than we usually see in cars. Works fine but could have been a little bulkier with better plastic quality.