Dzire is one of the most big boot space and its actual fuel economy is around 22 km/l on highways. I have driven it 1,40,000 km and still has a good amount of power. But as we all know maruti don't have good build up quality thats why it makes some noises but overall dzire is value for money and i love the diesel engine because of the power it gives and a/c is also too good till now.
It is not very comfortable . Most of people purchase it as a family car as it gives a good amount of boot space and makes travelling easy.