I only had problems with it. TV always freezed after some hours, only rebooting made the card working again (for some hour(s)).
I foud out that the lnb IC on the cinergy was extremely hot > 150 degrees and then the internal protection switches it off (datasheet). I had a short cicuit in the coax cable when I used the card for the first time (maybe this damaged the card), but it should be protected against that. So I replaced the card with a digitaldevices cine s2 (german quality) and all problems went away.
The cinergy s2 is the same than the twinhan. .. and the technisat hd2, so I will never buy one of them again.