I'm very satisfied!
DON'T BUY IT! This is NOT Mastech, this is cheap "AIMOmeter" shit. Building quality and soldering quality is poor. Cheap electrolytic capacitors are used instead of solid capacitors in original. PCB design has has significant differences. I opened dispute, got full refund. This shit you can buy from other sellers almost twice cheaper. If you need genuine Mastech device, don't buy it from Aliexpress or any other Chinese store, here is only counterfeit. Buy it from authorized dealers.