Huge improvement over MB input.
Would recommend this to anyone asking about sound cards, especially if they haven't ever used one before.
As a PC user who's only ever used the motherboard sound inputs for speakers for over 10 years -- this was an enormous improvement; I listen to a lot of music and game quite a bit and the level of sound quality in games was immediately apparent and made my games FAR more enjoyable.
I was encountering some software glitches in Windows 7 (64bit) with the program freezing when changing from headphone to speaker mode (or vise versa) -- which required a reboot to fix.
I've been on Windows 10 now though since it's public release and haven't had any problems.