First off I love Flirc! Used it for months with a Mac Mini XBMC setup I had going. However I recently switched to using a Harmony Ultimate Remote and an Amazon Fire TV. At first I couldn't get it to stop sending double keystrokes when it came to navigating. I found using the full keyboard profile INSTEAD of the Amazon Fire TV profile (along with a few other settings) solved this. However I'm still having some difficulty getting everything to function properly. I would say 90% of the time the Flirc doesn't recognize "short" presses from my Harmony remote. It does register when I hold down the button for a longer period of time, but it's kind of annoying to have to do it that way. Note that this only applies to non-navigation keys. I've tried messing with the inter-key delay on both remotes but maybe I just haven't found the "sweet" spot. Currently I believe my harmony is set to .1 and the Flirc is set to 3 Anyone had these issues?!