Any mac user use ies4osx

I heard about this a while back and ended up forgetting about it, I ran into this again this morning and it looks like it may be a nice tool. Anyone have any experience?
http://www.kronenberg.org/ies4osx/

And here is the blog post/review that reminded me of it:
http://5thirtyone.com/archives/869

Just a note that this will only work on Intel Macs; the Wine layer that is used doesn’t work on PPC Macs.

Since it uses the X window system and Wine, it shouldn’t be much different than the Linux versions.

Thanks for posting the links - Iooks to be mighty useful, I’ll be getting this installed later. It’s a pain having to fire up Parallels just when I want to check something in IE.