I'm purely a PVE guy so far thus my needs to switch mains has been few and far between.
I find it invaluable for collection quests as far as PVE goes, but yeah I generally PVE so far but am on a PVP server and have been known to enter the bg's (Ruin battlegroup). I need to get some tanks levelled up so I can gear up my shamans through heroics now that they're 80 though :cursing: I'm severely outgeared in PVP

Anyway, the new feature I mentioned I was working on is now completed, available and fully documented with examples on the ISBoxer page (specifically in the World of Warcraft Game-specific Help page, under Advanced macro functionality). Now I can get rid of that pesky Invite macro I still have lingering in the game client and use my universal invite macro (one of the examples). That's the last one!