If you look at what the Microsoft Lumia 950 XL users have to say about the device, you will be surprised by all the positive review the smartphone received but the fact is that things are not that rosy and nice after all.
When Microsoft first release the 950 XL, there were tons of complaint about how buggy the Lumia 950 XL was. To be fair, Microsoft acted quickly to get most of the issues fix but it looks like they might have missed out on some bugs.
Even after the update, some users have reported that their Microsoft Lumia 950 XL seems to have a very short battery life. There were other who reported that their Lumia 950 XL tends to reboot itself for no apparent reason. Of course, these issues seems to be happening on a few devices only so it could be just their luck.
There is no word on when Microsoft will get around fixing these issues.