Ron, I have not, though I have read reports saying it works very well. Years ago a friend loaned me a set and I tried them but they do poorly; the technology has improved significantly since then. I may yet try it but may have to get a power bridge since the basement is on a separate sub-service so it may be hard to reach through a power line adapter. Have you used them, and if so what do you think?
I have been toying with getting a commercial-grade WAP but keep gagging on the price tag. So far my home network works well enough for me so long as something isn't eating up the bandwidth. It is not usually (if ever) audio that is the problem, it is other things like streaming video and one time MS OneDrive tat was sucking all available bandwidth. I probably need to get more net-savvy to see if I can throttle some apps from hogging the network.
Bluetooth is historically a short-range, low-bandwidth link though the latest versions have extended range and bandwidth. Still, WiFi has much greater coverage and bandwidth. I routinely get ~400 Mb/s upstairs, can get pretty good in the basement, but dropouts are a nuisance. My son did discover the WiFi adapter in our MSI notebooks (we have similar models, same WiFi adapter) have issues with Win10 so he got an external adapter that seemed to help.