I owned the smaller card for about a year.
It did break on me, but someone pointed out to me that it may have broken because I had it positioned right above my PSU. Which wouldve been blowing warm air directly into it. But in my defense, I only had one slot for it. I dont know if thats really something that would break it.
But I did want to say, it gave pretty good surround sound, drove my AKG K7XX pretty well with no problem. Im not an audiophile, but after these broke, the audio sounded underwhelming with the onboard card. It also made my mic much clearer sounding than onboard, and no background static.
Audio also picked up no hissing noise, which was something I was greatly concerned about. But everyones system is different. But my experience was no hissing with audio.