Summary: I have owned the 4810ci since Sept 2009. It is an amazing unit! I have 3 Emotiva amps (XPA-1,XPA-2 & XPA-5) and am using only 4 of the 4810's internal amp channels for the heights and wides. It sounds exceptional.
Summary: I have owned this reciever for just over 2 months now and I can say that this is top rate gear and really does seem to have it all. There is no way that you would be disappointed with the functionality it offers, however, this is not in any way a unit for the beginner.