I tried the new interface today after the notice of the update related to Flash support going away. I like that you can now see the amount of free space on your PVR.
Unfortunately when viewing recordings or scheduled recordings there doesn't appear to be scroll bars or any way to navigate the lists. I've tried both the latest versions of Firefox and Chrome and can't seem to scroll through the lists.
I tried page down/up (didn't work either) but not the scroll wheel. I normally work with a Wacom pen so no scroll wheel.
Early days with the new web interface so I suspect it will be rectified in an update.