I'm new to this thread, bought my ultimate a few weeks ago.
I was very happy with my Harmony One, even more ahppy with the Ultimate.
Must read through this thread but already have a question: why is it taking so long when I change between activities when my devices already are on? The remote already knows which devices are on, so why the long wait (about 10 sec) after switch from one to another activity? While my devices already are on, the only thing the remote has to do is changing my HDMI input.
On the Harmony One it's ready in 2 sec, on the Ultimate it takes as long as the initial start from stand-by. As if it doesn't remember my devices are already on.