The first thing I found is that the IR needs addressing. It has no simple on/off button. You have to go through all the settings to turn it on and back through the settings to turn it off. Having said that, the inbuilt IR seems very good.
The other negative is the low, medium and high brightness settings, the medium and high, for me, have too much lag and therefore un-usable. The low setting seems very good but the down side is that it flickers all the time. I have e-mailled ATN a couple of times but haven't received a reply. I will keep you up to date.