Luxman m-900u owners - quick question

Looking for some feedback on owners of this amplifier. I am not looking for the '' dealer lingo '' that I have been getting ; '' sweet amp, the best that is out there, will give you a great deal , I sold a bunch of them in the last month ''....blah, blah, blah.....

So what made you buy this amp is what I would like to know from owners who have them. What made you take this one instead of others in this price range  ….and do you have to match it with the Luxman C-900 u pre-amp for the best results ?      

Thank you