After waiting all day for Fedex yesterday, I finally gave up and had to go to work. Left a note on the door for them to leave it across the street with my neighbor.
When I got home about 11:00 p.m., his garage door was open and I saw the box. He even carried it across the street to me. He said it arrived at 9 p.m.

Anyway, I un-boxed it and plugged in phones, and played it for about two hours, just as it came from the factory.
I am very impressed with many of the lead sounds, especially the guitars. It has some amazing Pedal Steel sounds, and many great Blues and Lead and Jazz guitar setups.
Other sounds I like include the pianos, saxes and organs. Srings, including Violin are really good as well. EPs are nice as usual.
As for the styles, two or three of the Audio styles are about all I could find a use for, but they are really nice, and I'm sure many people would use more of them than those that appeal to me. The audio styles are no reason to buy the 950. Not enough of them to make a difference.
The drums sound better than on previous PSRs, but still somewhat weak compared to Korg, Roland or Ketron.
After playing the PA3X, the 950 felt very toy-like at first, but I quickly got used to it. Key response is lightening fast, which I like. The new buttons seem more stable than previous PSRs. It is larger than I thought, and seems to be about the same weight as PA3X!
The new speaker system sounds really good and I could see doing small house party or dining job with them. They go way louder without distortion that the S900.
There are some really good styles, but nowhere near the quantity, variety and quality of the Korg's. The majority have been around in Yamahas for many years, though they appear to have been updated, and are better than before.
Haven't tried the mic processor, or much of anything else yet. I will spend some time with it over the next few days.
To be totally honest, right now, I don't see it replacing the PA3X, but it would be a wonderful backup or second keyboard, if I can afford to keep both.
No rush, time will tell, and I will update as I get more into it.
DonM