Have this stick for more than a year in use and can only positive things. Installing the software is simple and straightforward. Have brought them both under XP and Win7 smoothly running. The stick itself is relatively small, however, no other drive or device can more on a double USB port then be connected, because the connection is a bit wide. The supplied antenna is passive aufjedenfall sufficient if you want to run him in the city, where the DVB-T reception is good anyway. (Of course, only where DVB-T is available ... before again on "ueberallfernsehen.de" Check ;-) In the countryside and in enclosed spaces, I would recommend an active antenna.
The software is also very simple and knitted clearly and also runs very smoothly on a 6-year-old 1.5GHz Celeron. Of great effects (such as CyberLink usual) has taken distance (or they can also be easily off) So you need to be able to operate any new graphics card to the software ;-)
The remote control is also perfect, as long as it has visual contact with the stick. (On my laptop, the USB ports are just behind, so I did the whole thing with a USB extension set forward)
All in all a great stick for little money - price / performance in my opinion unbeatable. From me, there's a strong buy recommendation!