Mine came at 9am this morning, and after I finished setting up my iPad mini (hee,hee) I sat down to the s950.
Results:
It feels like a psr
it sounds like a Tyros (LOVE the acoustic guitars)
it's built like a toy, but it's LIGHT. (why I got it)
The real audio drums sound good - not a night and day difference, but very clean and "in the groove"
The first 2 jazz styles (audio) work seamlessly with each other to go from simple combo to full big band .... great logical steps.
Haven't tried the mic yet, or any song files.

If you're happy with PSR/Yamaha offerings .... you'll be happy with this one. It's very much a lightweight as far as build quality, but for us old timers who tre at their gear very gingerly .... it will not be an issue.I have all day tomorrow to fiddle with it, so I'll post more later.
For now ... the PA3x might be retired to my studio to do my recording and jam sessions - the Yammy will come out once a month for my club dates until summer hits ... providing there is still work at the Jersey shore for me. As far as I know, my favorite spot (the Crab Trap) is still standing. My fingers are crossed for everyone who makes a lot of their living during that short, summer season each year. I feel so sorry for the people on LBI and Seaside .... it will be a miracle if they work at all this summer.