You can add to the list, from what I've seen:  not waking from Sleep.

But I'm not sure how much these are universal issues.

This sounds as the same problems we had before W10. I have updated it, no problems so far. In fact, it has improved significantly since the "battery saver" feature has meant that when I leave the tablet at 84%, the day after it still is at 84%, which is critical (I have clicked everything to be off during standby).

However, from time to time (this week 3 times), the tablet turns off. I turn on and battery is still at where it was. This problem happened also before (had I known this, I'd have returned the tablet).

Another issue is the lack of wifi when it comes from standby or after an airplane mode. This problem is unsolved and will be unsolved I guess forever (this is the reason I won't be buying a dell tablet never again). I have been able to almost solve it (it still fails, but very rarely) with powershell, scripting a manual reset-wifi, and scheduling it also when it comes back from standby. This has been a change in the tablet usability.

My suggestion, update, it gives the tablet a second life. And if you're reading this before buying it, DO NOT DO IT! Wait until microsoft releases a mini Surface, I bet it will be much better supported.

*Recently updated with August-2015 new drivers and stuff from Dell support page. Nothing seems to have changed (as with the previous updates, nothing new under the horizon)