Well, from the Live menu it's a disaster - firstly, as you observe, there is only 24 hours available, regardless of the fact that you have up tp 14 days' worth of guide data. Secondly, if one press choose to record from the live data, it will not perform a series recording. One then has to go to the scheduled recordings tab and look for the program to alter the recording options. And with the speed of the Tablo's processor, it actually may not be in the guide immediately.
From the Guide screen, we firstly detest the thumbnails, since they're small and not easily readable, and they can't be filtered more than alphabetically. So if she's interested in what new shows might air in the fall season on NBC, she's SOL.
After much experimentation, last night I got her to sit down in front of her laptop and that UI is much better - with filters for channels and Prime time. I would, of course still like to see textual descriptions, but at least the thumbnails are readable, whereas from 15+ feet away, on a television screen, those thumbnails are just a colossal failure.
Don't actually see or understand why I should accept 24 hours as the cut-off for a view of the schedule.