- check my emails;

- manage my todo lists (previously with Wunderlist, now with Microsoft To-Do);

- watch Twitch with Livebeard or Unstream;

- watch YouTube with TubeCast (could use a better app for this, but I haven't looked in a long time);

- rent and watch movies from the Store app;

- read and manage my notes with OneNote;

- listen to music with Groove;

- use Twitter with Aeries or Tweetium;

- read my Pocket articles with Latermark;

- listen to podcasts with Grover Pro;

I make liberal use of the window snapping feature to do most of those things side-by-side with my browser open.

When in tablet mode I'm primary consuming content, and I've found that my Windows device is just as good at that as an iPad or Android tablet. If I'm in tablet mode I'm sticking to the apps that were built for touch, i.e. apps from the store and Edge, not poking around in VSCode or other apps meant for a mouse or keyboard.

What really sold it for me was that I can just flip it over into full laptop mode whenever I want and have 16gb, core i7 dev laptop ready to go instantly.

For reading PDFs, I'd recommend taking a look at Edge again. It's pretty great for reading PDFs and ebooks with the new Creator's Update.