I guess it's main attraction is as a space-saver for non-combat use (e.g. mage portals, boss tactic macros, mounts etc). That's what I'd do anyway, it'd have too much potential to mess up in combat methinks, especially as it pops up under your mouse. :/


To anyone else, do the actionbars 'collide' with each other to prevent overlapping? Because that could be stressful if you accidentally pop up the hidden bar whilst tanking and can't hit a cooldown until you realise what's just happened.

Not necessarily. Sometimes there are spells that are useful in certain circumstances but don't need to be on the action bar the whole time. So instead of cluttering up your screen with all these buttons you can keep it just a second away from what you want to do. And since it lets you bring up the buttons at your exact mouse position it can let you focus on what you need to see instead of hunting around for a button on your screen.

Situationally useful spells and abilities that don't need to be key-bound or shown on the action bars is most likely the use for it. For my own purposes, oPie does a wonderful job as well. Anything regarding defensive cooldowns should definitely be keybound and accessed at a moments notice unless you like planning your CDs in advance and know exactly when you will use them.

One use I can find with this is actually keybinding a lot of regularly used abilities to the hidden Geist bars and only actually looking at the bar when you need to, although I'm not sure if that is possible. Even though my most crucial abilities are all on my main action bar, I hardly every look at them since they are all keybound and memorized. It might actually save space to hide the bars completely and only bring them up when you have some need for it. I'll try it out tonight and see how it works.

I have all my situational skills on a hidden bar that conveniently appear on mouseover if I need it. Doesn't take space, doesn't obstruct visibility by suddenly appearing on screen over something important and is just 1 click away.

Yeah, Bartender can do this.