I have purchased a WagonR around 1.5 years back from Saboo Motors, Hyderabad. So, far my experience has been great! I did not face any problem with the car, and the service was great. The Executives occationally keep in touch, to ask you how the car is performings. Also, Saboo conjducts free checkups.
The mileage of the car is consistent and good. I get around 14 kmpl in the city. The handling is good. Also, the car is quite spacious. The back seats can be made flat so that a person can lie down with legs folded. It is pretty useful when carrying cargo or when going on long drives, when you family can lie down at the back instead of sitting all the time.
I have dirven an indica and Santro. Indica is not even close to Santro or WagonR. Santro is good, but the mileage is a bit less (11-12 kmpl) and you do not have much option to fold the seats. If you are a family guy, and especially take you family out most of the times, WagaonR is the best. So, far my car is going greats guns, no issues, no problems....