We own Vento 1.6 litre petrol Highline model for almost 3 years and my experience says sales and after-sales maintenance from the company side is GOOD.
The car's performance is also really good and do match the mid-range boost of diesel cars of rivals.
The average is descent.
Just the price is on bit higher side but it's understandable for the Brand and premiumness of the car.
Safety can't question any, have a very rigid body.
I would prefer anybody to buy if planning for a trustworthy car and for many years.