After I had the TechnoTrend S845 HD + receiver re-wrapped and sent back, I have brought my 6n Volksbox. With a bit afraid (negative recessions because operability and program hangers) I have connected and started the receiver. From there I was just flabbergasted. The installation was very easy, the unit can be operated perfectly with both the original and with the Harmony One Logitech. Even a perfectly ordinary Logitech cordless mouse / keyboard combo I could connect and it ran right off the bat. Seemingly out of the "normal" HbbTV receivers through the firmware update, the "Web Edition" was. The web browser is freely editable. To date, the Receiver has not once suspended. The external 2.5 "500GB Samsung is also easily detected with the keyboard / mouse on the USB hub and running properly.
The picture and sound I can only agree with the previous writers - top (HD and SD)
Another tip: Using the keyboard, the menus, change channels and other inputs are mega fast. In addition, the lucky owners of Iphone, Ipad, or Ipod touch an app to download. With this app, the receiver via WLAN / LAN to leave also use super.
In short - I have nothing to complain at the receiver - A 100% buy recommendation from me.