Ignoring the trackpad, the keyboard will sometimes refuse to register keypresses or will repeat keys. This is particularly problematic when you type fast (like a password). On mine, the tab key also gets stuck rather often. The trackpad doesn’t have much control for fine movements, which makes resizing windows... interesting. And the trackpad frequently activates spontaneously which causes cursors to move around.
Aside from a small issue I had with a loose bezel, the rest of the machine is very nice. It is a good sized (14”), very sturdy design. The screen is pretty good too. Maybe if the keyboard and trackpad firmware gets fixed, then it could be a usable machine.