Review

Considering its costs and size, this VNA is particularly efficient and can easily cover all needs of home-made DIY projects of amateur radio operators and fans of RF and sub-microwave experimenters, looking for a portable, yet satisfactorily accurate for its category VNA.

I would say that any serious individual working on radios, antennas and RF components/circuits, etc should stock this. Product is also supported by an active forum, regular firmware upgrades, fixes and improvements. You can plot up to 4 traces simultaneously, which is useful for more complex measurements (either S11 or S21). Battery lasts for several hours (I've set screen intensity to 10% - this helps to conserve battery) and there is also PC connectivity over USB-C cable, which allows you to display measurements in real-time in your PC display, etc.

Note the VNA screen is of resistive-type, and not capacitive, this makes pressing of buttons a bit 'weird' at the beginning, compared to a mobile phone screen, as there is a soft thin film on top of the LCD screen which bends inwards upon pressing. Eventually you will get used and it won't be a great deal.