For me, it’s been useful to get in some gaming time while still being around my family/kids. I have a gaming PC too, but it’s in my office which is kind of cut off from the main living areas of our house. The SD allows me to play and still easily pause to do whatever for my kids or talk to my wife, etc. The sleep/wake is *chef’s kiss.
My other use case is emulation. It’s really good at it, and even passable at emulating the Switch. Though the sleep/wake doesn’t work with those, it’s a trade off.
Awesome idea, joined!