This is a cool idea, but I think the capacitive touch buttons are a mistake.
I have two different appliances that have them, and the lack of tactile feedback is really irritating, especially when a button press doesn't result in instant visual/audio feedback from the device. (Makes you wonder whether or not you actually activated the button.)
I also really dislike buttons without feedback - you press them, and get nothing back. I often end up pressing them far harder than I probably should; the lack of tactile feedback seems to trick me into doing this.
I have two different appliances that have them, and the lack of tactile feedback is really irritating, especially when a button press doesn't result in instant visual/audio feedback from the device. (Makes you wonder whether or not you actually activated the button.)
I strongly suggest using actual buttons.