I know this is not official forum for Harmony and Alexa, but most of you use this with Smartthings.
They have release official skill for Alexa, for Harmony.
The only “problem” i can see is only for activities, is not possible to say something , “Alexa raise tv volume to 10%” or “Alexa change TV to NetFlix” and not “Alexa turn on Netflix”
Activities already was possible, for us.