Alexa App on Windows 10

I installed this and it worked well, all the smart home control capabilities work. No harm in installing it, though I don't see using it much.    I don't see that it eliminates Cortana, its still a matter of choice what you use.   Also in the notes below it mentions it cannot control the resident PC, but that will apparently happen soon.   That's when things get interesting, especially if it can work with other Windows Apps. 

Say goodbye to Cortana: An Alexa app is available on all Windows 10 PCs  in DigitalTrends

" ... Unfortunately, only select newer PCs are compatible with hands-free integration which allows for a “Hey, Alexa” phrase to wake the assistant. These include both the Acer Spin 5, HP Pavillion Wave, Acer Aspire 5, and the HP Envy. Everyone else without these PCs can still interact with Alexa manually by starting the app or using a keyboard shortcut.

Alexa on Windows 10 also doesn’t currently allow consumers to directly control their PC, but Amazon notes there are upcoming plans for adding the capabilities in 2019. Additionally, the Alexa Windows 10 app currently doesn’t support video communications or music services like Spotify or Pandora, according to Amazon. .... "