Iam using a Soundblaster ZXR since a few years without any problems. After Ive installed Windows 10 it causes several crashes, so I returned back to Windows 8. Since then i have no problems. I had some other Creative cards before and i never experienced much problems with their drivers too.
My SoundBlaster Zx has been the most stable Creative card I've used, and I've used it almost entirely under Windows 10. Only issue has been that the software-based switch to go between the headphone out and the speaker out stops working after a major WIn 10 update, but the fix is pretty simple, just reinstall the most recent driver over the currently installed package.