All reviews show 21 - 27 km/ltr. I too have a Baleno CVT Delta and have run 5000 kms in last 3 months.
I get an average of 13.4 in city and 16 kms/ltr on highways.
The car is definitely spacious with good legrooms and huge boot space. Also pretty looking.
A/c is NO MATCH for a Figo( I do own a Figo also). Suspension is definitely good but not the best.
At an on-road pricing of 9.05 lakhs, it could have been even better.