I was looking for an automatic premium hatchback and the options were Jazz, Baleno and Polo GT TSi. I went for the Jazz primarily because of the sheer space and airy cabin it has. The build quality is excellent and gives a sense of security which I didn't get in the baleno as at high speeds the baleno was wobbling a bit in cross winds. While the iVtech is not the best of the engines, I would give that credit to the Polo, it still did the job pretty well. Finally the gearbox, it's decent in the city and does a good job, the CVT on the jazz shows it's rubber band effect while pulling quick overtakes and it's almost dead on the highway. I need to work on the paddle shifters for overtakes as a dab on the throttle will push up the revs without much forward movement and this is a pain on the highway. Summarising the review
Pros
1. spacious cabin and boot (probably best in class also)
2. Impressive build quality and reliability
3. Paddle shifters on automatic transmission.
Cons
1. CVT gearbox is not that great
2. Some features missing like auto wipers, auto headlamps and DRLs which is available in other premium hatchbacks.
Overall it's an amazing vehicle and I love the sense of space and build quality. Have been using the car for 2.5 yrs and the service network in bangalore is amazing as well. Haven't faced an hassle and the costs are moderate as well