I have some of these units myself, I got them just because I kinda like how there look. They're also kinda interesting as they are one of the very few low-end moles to use feather touch electronic buttons. It doesn't even have rewind.
I'd say the volume buttons are rather annoying though. It takes a lot of pressing to reach the volume you want. Sliders/wheels are much more ergonomic. I can't recall of any other model with volume buttons like these, though? Anyone know of any?
Yes, you're right. It's annoying to operate coz it's like pressing rubber type & it's response is not precise as we expect. I think the volume wheel could've been placed next to the tuning wheel.