A while ago the 'Manage channels' stopped working, now it works. Then they came up with that "categories" fiasco - which thankfully lasted only for about a week or so. Now every time you leave live tv or power down, the Guide reverts to 'All channels'. The 'Recents' choice doesn't work at all. It's as if they're still beta testing the system.
My biggest gripe, however, is still all those repetitive promos for Roku and Premium channels. It's like Groundhog Day that I experience day after day, dozens of times a day for each Ad.