It's rather slow.<p>I've used this on a few projects before, and always found it took several seconds to "do its thing" on a mildly complex site.<p>Remember that the typical computer that runs IE6 is not new hardware, and is probably already throttled by corporate bloatware in the systray.
I've tried using this on a few sites and it seems to fix some problems. However, it inevitably ends up causing new bugs.<p>I still think the best solution is to keep your CSS and javascript as simple as possible, while resorting to browser dependent stylesheets/scripts only as a last resort.
I tried this about a month ago, and found that it wasn't an instant fix for CSS issues.
Things still weren't positioned correctly, though it did repair others.<p>Along with not wanting to bog down IE7 with more javascript (my site is pretty javascript heavy already) I decided to stick with just IE7 css hacks (I think I have about 20 of them).
I use it in all my projects that require IE6 compatibility. While it does not solve all problems it makes IE6 a lot closer to IE7/IE8 than it would otherwise be. It is a bit slow but it has saved me tons of development time so far.
Do you know if there's a "fix-to-standard.js" where it update the current browser to standard? I'm not a web expert, as you probably guessed, but I was just wandering if it was feasable. For instance, it could add the ajax stuff which is different or missing in IE6 like it is in firefox. Etc.. Just including a .js would make everything standard. Again, I know it's noobish and probably unfeasable, but I was wondering why exacly?