A thing about the official dock, maybe it’s just my setup BUT: it drains the battery. It doesn’t look like it, but if it’s off or suspended, the Deck loses charge while connected to the dock, then you grab it to use it (and the battery is like 97%!) but within 5 minutes it’s completely dead. Again, it might be just my setup, but now I unplug the Deck from the dock once it’s off.
It takes days to actually drain the battery a significant amount, you’re not going to notice it during the honeymoon phase :P
I noticed it because my Deck lives most of the time on the dock.