I have been driven my tigor xz+ petrol for a few thousand kilometers and i am very happy with my decision despite friends suggesting not to go with Tata cars. Everyone has their priority aspects while purchasing the car but mine was in the order of safety, comfort, price, mileage, and features. It has bagged 4 stars in NCAP for safety, it's suspension is very good as compared to the other cars in this segment, price is competitive, mileage it gives 20 kmpl (combined) in eco mode. It has the required features. I have driven in the city and went on long drives about 600kms. I feel confident and safe while driving. It never gave me any problem until now.
Coming to the cons the styling is not very much impressive and it's a personal choice. While putting the reverse gear i need to apply slightly more force than the forward gears but for me it's ignorable since it's very slight and if I don't apply then it will be stuck in between. Car-related apps are not useful. Just for namesake, they are lying in the Android store. People say tata service centers are not good but i suggest to enquire and go to a good service center. And also you need to deal with the people who disesteem you for owning a TATA :), just be happy on your decision and ignore those people, also keep in mind every car has some cons be it a supercar or budget car.