Review on 35000km driven and 2.5years old car

I have been using tata tiago xz revotron from more than 2.5years, drove 35000kms, Below are the problems I see during 2.5years. 1. Got to change battery in 2.5 years, which cost around 6500rs. Only one year Warranty on battery. 2. AC is nor good enough, for drive in normal day times. After servicing will be fine only for few days, later same issue. 3. Gear level vibrates continuously in neutral. 4. Can not expect milage in city drive. maximum can get 10-12kms per liter. 5. After 2years keep getting small problem issues. On highway mileage will be okay if you drove in eco mode. 6. Apart from these issues, drive comfort is okay. Pickup is good. Sound system is good. Regards, Kiran