It didn't make any difference here with our install. It certainly didn't hurt, but it still takes quite a while to populate the sections of the home page, and navigating between tabs and functions didn't change at all - I've timed it.
I say go for it, but just as a FYI - in our case, as unusual as it MAY or MAY NOT be, it didn't help.
It seems to be Java that's the slowdown. IIS isn't slow, especially when it's a powerful server just feet from where I am accross 2 switches from me on the same network.
I note similar on the Symantec protection for Sharepoint servers - the Java is slow, and I tried both products from 3 computers - a server running Server2003 R2, a desktop running 64bit Vista Business and a notebook running XP Pro SP3. No difference except Vista seems to be slower than the others.