I have had mine on the wall for about 5 days now woohoo
I replaced a 65ST60 (also have 65VT50) with this one. Still amazed Panasonic did such an amazing job with these plasmas
Uniformity as expected is nowhere near the plasma. On changing inputs you definitely see some clouding especially in a dark room, but very minimal considering how huge the screen is. I do not have the band that a poster posted earlier in the thread.
However, on normal viewing, it's absolutely excellent. The new chipset is super responsive. Comes up in a fraction of a second.
Can easily handle 90mbps mkv rips over network using plex, no hiccups at all.
HDR is beautiful with lots of headroom. I am on gamma 0 and still find it plenty bright.
Viewing angles are excellent too. I have no experience with the X900F so cannot compare, but it does throw a beautiful picture.
If expectations are real, it's an excellent set for the money