Well, I believe they well deserved it... no one would give such a huge amount of money if they didn't think GriSoft is good enough.
Of course, their AVG's GUI looks really ugly, but with a touch of a good graphic designer they can make a hell of a good application. Right now, it doesn't look professional, and in the same time it doesn't even look "gamey"... it looks like those old applications from Windows 3.11 which is just a drawback in my humble opinion...