I recently purchased an LNPoS from the shop at shop.lnbits.com. After some tinkering, it's working like a charm. Even though it doesn't provide advantages over simply using a smartphone with a software wallet***, it's physical nature makes it very attractive to nocoiners. It's just cute and fun, so people are curious about it. It's sparks a feeling that Muun or Bluewallet simply doesn't. *** Disclaimer: the one big advantage that the LNPoS does have is the ability to work without an internet connection. Whether that's useful or not will depend on your context. I assume in my bubble most people can easily connect to internet all the time, so it's not really an advantage for me. But it might be for you.