Just as a FYI I'm quite the proud owner of a S (only the 500GB but then having a 5TB external makes getting bigger redundant). So it is exactly what I think it is. A good machine that like the PS4 has some issues. The only crashes I've had on PS4 involved Fallout 4 which, as I'm sure you are aware, is not the most stable engine. Infact, I had similar issues on the X1S on Fallout on top of a few OS crashes/freeze's - I've not had a OS issue on PS4 since release- Just like other may experience none on the X1. Game crashes or application crashes are usually to do with the actual game and we all know these days bugs can be problematic regardless of the system, so yes my statement is true -every system has the odd problem which is not always down to the system but rather the game code. I won't get into hardware comparisons either although there are very well know issues on one of them with the controllers (and I don't mean the shodder rubber the OG ps4 shipped with)
I wasn't saying the X1S is a bad console or getting into any of the system war nonsense, infact I quite like it for certain games and the elite controller is a great bit of kit. However. It remains true that both systems are capable of errors on the OS front and both systems can have games poorly optimised games and game related crashes, which was my rather blunt point. Not really rocket science:)
Have a nice day sir.