I purchased i20 Sportz 1.2 MT( petrol) in October. The buying experience was superb. Having finished around 3000km in it and driven through harsh weather conditions all i can say is its one of the smoothest cars. You literally cannot hear any vibrations or noises in the cabin.
When it comes to looks, its definitely a looker, when we compare it with other cars in the segment i20 is certainly great looking car. I got my first service done for free and the next two services which are due are also for free.
Coming to the Pros - 1. Looks 2. Spacious cabin 3. Smooth transition and driving.
Cons- 1. Expensive car 2. Mileage is not that impressive (almost 15 km/l) in the city traffic & 3. Few additional features could have been added in the cabin and the material of cabin could have improved slightly .