In my anecdotal experience, it's working relatively well, but some of the devices are simply subpar or buggy. My earphones (though sometimes I catch microwave

In my anecdotal experience, it's working relatively well, but some of the devices are simply subpar or buggy. My earphones (though sometimes I catch microwave interference), speaker, keyboard and mouse (though my mouse gets choppy if system is under strain - which tells me that there's a fair bit of CPU processing, which is a reason) work reliably. They always connect and perform the desired function. Both my cars are unreliable. One of them disconnects pretty much every time on the second connection in a short time (eg make a quick stop, phone connects for 20s then drops). The other sometimes has choppy audio, or distortion. Both sometimes don't catch my phone and I have to manually trigger connection. Sometimes they don't connect at all until I reboot the car. Given the general state of car infotainment, I suspect this is a poor implementation by the car manufacturer. (arguably not simple given the interference of alternators and such and being in a Faraday cage).