It sounds like I'm a negative nancy by what others have described here. Yep, I have a few issues with my 950XL, However, all the problems being faced with are software/OS related that can be solved by MS rolling firmware updates and OS/App updates to the phones. But I push my phone quite hard so I find issues that I post back to Windows Insider.. which is what that whole program is all about.
I love my 950XL, its hardware! It takes very impressive pictures indeed! Really. Again just issues with quick individual pictures in succession, and the issues of reviewing pictures can take a minute to 'Add the finishing touches...', all software issues.
Recently received my Mozo backplate (black leather), and it's awesome! Looks very sweet now not that I didn't like the look or feel of the stock standard 950XL to begin with, but now it has the same design elements that my Subaru BRZ has!
Friends and family that take hold of my 950XL are blown away by how light it is and how amazing the screen looks - justifiably so.
I really like my 950XL aside from all the issues with the software, that I ensure I submit detailed feedback for and address to those that can actually do something about it... as I've said before, yep there are problems but these are purely software/firmware related a Windows Insider was meant for constructive user feedback to resolve issues. It's still very early days for Win10M - I remember when Win7 came out... it had its own initial issues.
Enjoy your 950 series device... I do