After reading good tings about the Rii 8+ I've bought it and tried to get used to its agonizing lag. My couch is just about 4 meters away from the Q10 with clear line of sight. Still I wasn't able to manage a lag free control. Especially the annoying input dropouts when trying couch surfing made it unbearable for me. The software remote was much better, but still I didn't want to suck my mobile's battery dry so I went for the Logitech K400. Of course it's huge compared to the Rii 8+ but still, having a keyboard that flawlessly works made me send the Rii back. I'm very happy with the K400 and would recommend it at any given time over the Rii.