The problem is, that using any IE / MSHTML based browser, you will run into the same lame rendering bugs that IE has, and thus properly written web sites will not show correctly.

Fortunately this is a minor problem for most users because there are so few properly written web sites

In fact, there are some sites SO LAME that they will only work WITH the IE rendering bugs.

Of course web apps which need activex or whatever are only going to work in IE - but who cares. Add them to your "trusted" zone and be done with it.

IMHO the only reason for using IE is to run Windows Update (which is of course not a problem if you're not in Windows)

Slarty