For me, the receiver works very well. Tips picture - whether HD or standard broadcasts. The extra cost compared to "TechniStar S1" worth investigating. Opposite the S1 has an integrated power supply unit with power switch and a large good-read LED display and also a very valent housing with additional USB and memory card reader.
The HD + card is a great extra addition.
Tip: For HD broadcasts a well-shielded cable must be used - until I upgraded that there was "Start - difficulties" with HD programs.