I have been using Voltas Split AC at my home for the past 2 years and it has been working without any issues or any maintenance till date. Though we do not use it for a long time during winters, the performance in the summer is good and I am satisfied with the performance.
I felt its value for money with multiple features supported by its remote control. One need to understand the features before experimenting. Turbo cool, panel on the Indoor unit are too good for display and user friendly operation.
Recently opted for one more 1.5 ton AC for my 2nd bedroom. Will recommend to opt for this.