For my cellar I needed a not too expensive system to which I could connect my PC, the X-Box360, the TV and a CD and a DVD player. On this point, me the ways of the Z906 convinced and so I did it then ... ordered the delivery took a little longer than specified, but not a problem for Amazon or Logitech can not.
The structure is very easy by hand, the enclosed cables for a 20 m² room (almost square) to fall short ... but that's not a problem as the cables are fixed by means of clamps and thus can be replaced by longer (this to take into account when making a purchase - 7.5 m for the rear speakers are too short, especially if you run the cables disappear behind the skirting board).
When you turn on the first positive experience: it does not "cracker", the volume is gradually raised from the system to the selected volume, the sound convinced. The subwoofer makes neat "steam", even at full load there is no overturning of tones. If you like turning up louder, you have to be careful when placing the subwoofer slightly because by the sound pressure like erected near objects vibrate (chest wall z. Ex.).
In a house not a problem in an apartment I can imagine that this could lead through prolonged use may cause problems with the neighbors (especially the bottom).
The remote control is very simple, the settings (stereo, 2.1, 5.1, ...) are clearly perceived by LEDs on the front panel. Switching between devices works perfectly, because the volume always automatically "soft" lowered or is raised subsequently.
I have the system in use for a month, but it infected due to some reviews on a A / Ausverteiler and thereby avoid longer standby mode.
Summary:
+ Price / Performance
+ Sound
+ Connectivity
+ Operation
- Cable length (too short for large rooms)
from me, there is a strong buy recommendation, since the price / performance ratio is absolutely in order.