The DD Cine CT with her twin tuner and the expansion options such as CI slot and max. 8 (!!) tuners was from the beginning my favorite and after some research on the net it was clear that I have to have these cards. Sure, a bargain the card is not, but it is absolutely worth the money! I never have a TV card so easily in a system up and running get like this - installing, restart computer, download and install driver and it just works!
I think with horror of the days back, where cards from other manufacturers have led to blue screens if you have changed the TV channel or the entire computer is frozen, if you have activated TimeShift ... - the list of horror stories could go on some continue, but that it should not go here yes. ;-)
On my DVB-T Stick me has massively disrupted the single tuner, with the twin tuner on the Cine CT I can now record and watch at the same time something completely different or just make two recordings at the same time finally. The CPU load on the server is absolutely negligible. The quality of the recordings is expected to be better than with DVB-T, because there occurred despite very good reception from time to time Artefarkte ("block noise"). Of this there is nothing now to be seen.
The HD signal of ER prepares absolutely no problems, but you should significantly more disk space for recordings schedule as for SD recordings of private channels. ;-)
I can absolutely recommend the card just for construction / upgrading of a PVR.