The Microtek inverter is very good. we have been using it for more than 4-5 years now and never faced any problem. though I have got the battery replaced twice but the inverter is working fine. So, I think it is a good product on an overall basis and is value for money. You can depend on it.
There is wide rage of microtec invertor depending on your requirement(viz. power consumption), so choose the right type and take an informed decision.