Oh come on, 2/10? Don't be ridiculous, the PS3 browser is perfectly adequate to do straightforward surfing but licensing issues are always going to be an issue for it; you are not likely to get real player, quicktime and media player support any time soon, but you should be able to play Flash videos (though an update is needed to play the newer versions).
I use it fairly often and can forgive the missing "plug ins" for the convenience of web surfing on my tv!
The only browsers that will offer you a full web experience are those on a PC.
Failing that you could install Ubuntu and use that, I hear you can get a fully functioning browser that way.
One thing though is that I would have thought Sony would have created PS3 browser specific versions of their websites!