Microtek inverter is number one inverter in all inverter. I am using this inverter since 7 years, I never found any problem, only once I have found a fuse problem, that was sorted out after contacting service centre, the service is too fast of this inverter.
The battery backup is awsome of this inverter, I must suggest who face power cut should go for this product as power cut, load shedding is a common aspect in india.