No, having to navigate through a menu everytime I want to use a skill bogs battle down. I also can't customize it (I, for example, have Bar 1 as offense magic, Bar 2 as healing/buffs, and Bar 3 as different DoL skills).

And I don't have to go into active mode to bring it up (you can just press 1-0 and it brings up the action bar).

I wouldn't mind it as an alternative, but I want to keep by action bar.