Everyone's different, but you bet I saw them in person. The video was spectacular. But the speakers were freakshow hideous, but not on their own: it's that they're glued to a tv. Seriously, this was a very weird gamble on their part...that people who place such a premium on what they buy for video are going to accept the visual effect of speakers right next to the image staring them in the face? I didn't find it just different, I found it uncomfortable esthetically. You don't make two bold unusual moves at the same time: 4K & speakers IMO. It's already established that folks buy TVs without speakers stuck to them visibly. Why would they risk this on an already big risk (4K)?
Not that one opinion matters, but I thought it interesting that the local BB had a guy buy and return the 55" X9 because he couldn't deal with the look of the speakers once he got it home--it looked much better in the BB/Mag room. I could see how this could be: In a super dark room they were distracting to me, but in a home environment they'd be downright off-putting.
I'll give you this much however: IF you were forced to glue speakers THAT size visibly to a TV, THEN that is how you'd want the speakers to look. But........gross.
No, the hideous TV design I'm talking about is precisely that XBR-__X900A that you mention you like. I'm referring to the "speakers as part of the bezel" as "glued on speakers". Just a figure of speach. And I'm not sure why anyone would like it, but to each his own.