I have had the Boom for a few days now and have issues with the presets.

I press and hold the preset for the currently selected item, which worked on the first go round. Then, when I try and do the same for a new item to change the preset, it does not work. I literally had to delete the item assigned to the preset from the favorites list to get it to let me assign a new item to the preset. I even tried online on the squeezenetwork manage my favorites and it still does not work. 

Deleting the items from my favorites is not functional for me, I just want to be able to change my presets amongst my favorites list for quick access. I should be able to reassign a preset as often as I want just like in my car stereo, as others have alluded too in these forums.