Build quality always differ between a higher and a lower price AC.
But it would be really unfair that if we compare Voltas with O’General or Hitachi for build quality. Because for offering a product on lower price, there would be definitely a difference of quality.
But it doesn’t mean that the quality they are offering is bad. The quality of there products is good and you won’t feel that your buying a lower priced air conditioner.
However a premium feeling is missing which we get on higher priced ranged air conditioner only. The major difference of cost also impact compressor life as well. As per you usage, sometimes compressor can demand for servicing early for these and you may end up paying for refilling of it once in year or two.