The Type Cover for the Surface Go also fits the Surface Go 2 (as far as I know, there is no new version), and the pens are compatible across the entire Surface range. Furthermore, the chargers of the Surface Go, Surface Book, Surface Book 2, Surface Book 3 and the entire Surface Pro (from 3) and Surface Laptop series also fit. Only the "old" (from 2012) Surface RT/Surface Pro/Surface Pro 2 devices use a different plug on the chargers.
Pro tip: For the Surface Go 2 with LTE, order the data sim from Digital Republic directly there, not the expensive part offered here.
The device has Windows 10 in S mode. This means that only apps from the Windows Store can be installed. No programmes can be installed as with normal Windows.
Windows 10 in S mode is a more limited and locked down Windows operating system. In S mode, you can only install apps from the Windows store and you can only browse the web with Microsoft Edge, so if the apps don't exist in the store, you can't install them.