I have to agree - save for one item.
My employer uses Exchange Server 5.5 and OWA - on my windozen't pc, I couldn't connect with ANY brower, IE, FireFox, Opera. Fired up IBrowse - it W O R K E D! But...and I hate to say it, but I have to be honest - since I upgraded to IBrowse 2.4, it will *NOT* connect no matter how I set the prefs...
Other than that--->
IBrowse otherwise lets me pay my bills and do my banking. I feel more secure (all those arguments about IE being secure if you do this, and this, and this, then make this setting, and this setting...I shouldn't HAVE to do that!!!)
I am on (yuck) dial-up service, but good god! Tell me why I can't use a *modern* browser on a *new* machine to do something as simple as visit a website?
I also connected (via dial-up and my ol' Amiga [yes, I tried the windozen't machine first]) with my brother's machine in NYC from Mid Michigan to assist him with some 'puter problems he was having - worked out great! Got paid with some rather luscious chocolates....

UPDATE: I CAN access the corporate website via OWA using IBrowse, but only if I remove the url specific settings and make the required settings global...