I think everything Litho saying is also my amp head ...

I also bought used, with a small scratch on the screen, a friend who used it for 2 years.
I have 11 years now, and no worries (or almost, see forum)
I love the XS system popular with Kenwood has the time and I had bought the K7 player and CD player (PD 3040) which used the same standard as a result, while I was flying my remote control receiver .
The K7 died very quickly (under 2 years of life) and the rest is still there, though clinging to his cabinet after four moves!

At the time I bought it, it was a bit of history to deal with sound, and is regularly used for parties ... I have never regretted my choice of purchase!
The design is very sober and very functional.
Audio inputs are numerous, and he knew s'addapter for me when I connected to my TV and my DVD ... I use it in amp room now!
In addition, the possible switch of speakers (4 or 8 ARO) makes it a partner of choice!

Audio side, excellent power, especially given his advanced age now, the metal that is sometimes criticized for Kenwood (or perhaps these speakers) is not present (I have the speakers above Pioneers)
Likes:
The simple design
The compatibility of the remote control thanks to XS
The power of the thing that will break a window if you fall asleep on the remote

I do not like:
The appearance of plastic buttons, this litho is right!
Tape 2 button misplaced and unnecessary in my opinion ...
So for me, excellent price / quality ratio, I would do the choice to purchase their eyes closed!