FireFox 4 ?

Anyone have good experience with it ?
Installed FF4 on my XP pro, but performance is really bad (slow start up, freeze and bla) .... later on install FF4 on my w7 machine, same thing happen, so no choice have to roll back to previous version :)

From FF official site, most of the plugin is not compatible with FF 4 yet ....

Love it.... more stable then 3.6 I feel and more browsing space "out of the box".

Saying that I love opera too and can't decide for the life of me which one I really like more.