I have to say, it's kinda... weird.. for me now. The white looks too blinding, the comments section is super hard to follow, and where's the grey?? The title bar is too tiny bla bla bla
Honestly though, the major thing is the comments section. I get that they're trying to make the comments less "segregated" into separate threads (and to be honest, it was kind of hard to follow the old comments), but I'm not sure that it's succeeded.