I got i20 new iGen 2012 CRDI last month. The interior is good and space is good as most of them already know. I got the top end Asta model with lots of features. All the features I found it very useful as and when I started using the car. I only start the engine and drive with absolutely no switching on/off lights or wipers. Auto wipers worked amazingly good depending on the rain fall.
I went out twice on a long drive from Bangalore to Salem. The car is amazingly smooth. While in high speeds bumps on small bridges & flyovers, which is a problem on the road. I had a problem on my 2nd gear pickup for a week and it rectified on its own. I gave a complain at the showroom and they said it will be alright else we will retune it at the first service. I dont have pickup problem now. Since it was band new car trying to get adjust for my driving I think. When I break very very hard I get some rough sound which I have reported.
I havent checked the mileage yet and I will update my post in few day of my driving.