The ergonomics are excellent, it feels good in the hand, slightly yellow part "soft touch" anti-slip.
The quality of the central button is very good, son are flexible to be well handled.
The 9v battery is accessed by screws, it's odd and inconvenient, but ...
There is a foot to hold the bent and easily read.
However, there was a fail to a plastic junction default finishing. I have not packed up for it, but it's a shame. Otherwise it's perfect.
Note that the light of the screen, as on other brands, will be lit only 3 seconds (activated by a button). Curious too.
But considering the price, this is a great buy (it was 40 euros, 8 euros less good temporary reduction, so paid 32 euros).