I tried Cortana last night because why not. "hey Cortana" doesn't work, the settings panel is just glitched out, Cortana is apparently not supported in my location despite the UK being a location supported by Cortana, and it take her so long to analyse each word (downloaded the speech packs etc to help her out) that there is no point having it enabled at all. I managed to set an alarm for 7am, which took about 5 minutes to do, and she couldn't recognize any command after I had done that other than "turn off" which did nothing but close the Cortana search window.