Mike,
If you will, please respond with a brief description of your "hardwired power" modification (?) to these shades. Did you leave the battery intact and just charge it by USB?
I currently use the Ikea shades and have modified them for mains power. They have been rock solid for a couple of years now. But, I want an economical single device option for my 5ft wide window openings. This Smartwings product may fit my needs.
Thanks!