So, after a week or so of using the amp, I am HAPPY.
I haven´t fully explored the amp yet, though. One of the reasons for that is that it is really true what they say about it being really sensitive to whatever else you have in your system. I´ve decided I´m only using a CDP as a source as I can fine tune better cables, speakers and power chords and conditioners that way. The wild beasts coming through IMAC-Apple TV-optical tosling-MegabitHz DAC are too wild to keep under control.
I found IC are major concern (and I carry mediocre stuff in that department) as they can make this amp sound a bit too bright (although of course you can trim that down with the impressive treble control in the amp!!). I love the sound of my speakers (LOTH AMAZE) but they may be a bit challenged in the lower end (specially if they are not placed correctly, as in my case), so in a rather big listening room I´d rather start looking for a fuller single drive speaker, or a 2 way.
Take care
Agustín