I love the idea of it, and I love how tiny it is. Will probably get one when money isn’t so tight.
But I was curious if the power button was accessible without lifting it. And it genuinely isn’t. Why does Apple like shoving important IO and buttons underneath the device. Good thing it’s light?
Oh and a funny thing was the staff had to loosen its mount on the table so you could turn it on.
It’s not so much “constantly leaving it plugged in” as “constantly leaving it at a high state of charge” (near 100%) which naturally follows from the first.
In recent versions of iOS and macOS, Apple have added features to keep the battery at 80% charge as much as possible for this very reason - it massively extends battery life to not be at 100% all the time.