No issues up to now, EXCEPT for the fact that the power button is a wee bit easy to "ter-activate" in your bag, especially when packed tightly with no sleeve on.
Have had the 510 baking in my bag due to accidental power-ons twice already due to this. They seriously should have gone for the "slider" type of power button rather than the normal one here.
That said, the 510 handled being baked in its own heat in my bag both times like a champ, and it's chugging along fine even now, with zero heat damage.
Other than that, yeah zero issues so far, even with an upgraded SSD.
Also, I do use it as my primary note taking device so yeah, I pretty much use it in tablet mode (sans KB) almost exclusively. The KB is just like an "extra" accessory I keep around for "serious" typing. Otherwise I just make do with the software keyboard as the Win10 one is actually pretty good.