I use microtec inverter since last 10 years I think it is the best machine in inverter segment. I face some problems also about service but we can ignor it against its performance. If we use branded battery with this invertor then we get best result. It is very easy to use. It has UPS mode also. So that we can use the electronic product ( like computer) without any fluctuation. It is best brand in inverters.
At last I suggest to use this product for home and office so that you can live a better life.