EXORZIST  Sometimes, it's obvious, sometimes it's not. If you are a web-developer, you can use "Top-Sites" to present your own web-sites, it looks very good and I'm sure it will make a fantastic impression to your (future) client. You should also enable the "Developer"-menu and play with that. BTW., you can also ctrl-click a part on a website & choose "element-information" which shows you that "object" in the source-code.   
(Version 4.0.1)

EXORZIST  The javascript-bookmarks I use to resize the browser front window doesn't work anymore if you have a TAB in a window! This reminded me of "Netscape Communicator 4.x", because they had all the time such silly misbehavior. I wonder why this is happening with Safari, because it's top-software in a top-environment, so this makes no sense at all. I can't understand why the developers haven't fixed this yet. (Example: javascript:self.moveTo(0,0);self.resizeTo(800,screen.availHeight);)  
(Version 4.0.1)

JEFF H.  If you have a slower/older Mac AVOID!

I have a pre-Intel Mac mini and I spend much time watching the pretty beachball spin, especially on Yahoo!

Its fine in my G5.

I end up force-quitting this browser every third time out.

I really like it on my faster Mac though.  
(Version 4.0.1)

SHADOW RAY  this is a great browser and version 4 is easily as fast as any windows browser on running on intel. I remember a few years ago when Windows IE was about twice as fast as any mac browser. No more.

Not quite as customizable as firefox which I'm used to but the speed is winning me over. Nice work Apple.  
(Version 4.0.1)

QUIETZAPPLE  If you have Tiger 4.4.11 AVOID.

It is a nightmare.  
(Version 4.0.1)

GUNTIS  After updating 10.5.7 with Safari 4.0 to Safari 4.0.1 I see that the content of pages is not displayed correctly anymore. Somethig to do with CSS. Looks like CSS is ignored, or something like that… Every page looks different, sometimes big chunks are missing…  
(Version 4.0.1)

RAMPANCY  Sigh. Are we EVER going to get release notes from Apple about little point updates like this?   
(Version 4.0.1)

RONL  MUCH faster than version 3.

Thank you Apple!  
(Version 4.0.1)

MCOYLE  Tabs back on top with 4.0.1?

Michael  
(Version 4.0.1)

HOOT4WVU  O.K. My bad. I posted a few days back how disgusted I was with the Safari4 experience. It immediately bounced in my dock & quit. I maneuvered and finally gave up and restored my previous Tiger Safari. I said I didn't think I had any attached programs like input managers.

I was wrong. I had Sogudi. Once I ditched the plug in files, plist files etc. associated with that I tried installing Safari4 again and this time wowee. It seems to be working fine.

I had quit bothering with Sogudi so long ago I had totally forgotten it.  
(Version 4.0)