When I received this unit next to an EP2000, it was hard not to recognise the difference in size and weight.
It does seem that the fan in this unit is a little louder than the EP2000, but it isn't particularly problematic.
For our setup which is not running at full load, the amp seemed to work incredibly well.
One thing to note (which is certainly not a major issue, but only little thing I noticed) was that upon switching on this amp, there is a small pop from the speakers when the amp gets through its startup (not a dangerous one, more a soft click when power reaches the speakers for the first time).
I doubt that will cause anybody any major concern.