These encoders are similar to the feelings that are installed in autoradio or can compare with drum machines Boss DR3, Boss DR880. On a drum machine feel softer because it is used not a knob but the jog-shuttle. On opening one of the encoders I found that they are made with care.
In any case, the main factor is the very low price, which is good for experiments or when there is no certainty that all will turn right. I think the switch is soldered with the left encoder parallel menu button. It will be convenient for navigation: the axis of rotation of the encoder to select the desired menu item, and confirm the selected item by pressing the same knob that is focused on the menu button.
I'm working on the case, I can not finish until I got displays 2004 of normal size - have one of large size with large symbols and make all experiences with it now. Hopefully when finished, then try to upload pictures.