I had some issues initially when setting this up. When I setup a bar and tried to change that...ie to have an additional row or whatever, it didn't seem to save the changes properly.....in the end I started again. Kinda seemed like the bar had to be setup right forst time. There are also some bars that I've deleted, that despite me saving that change etc....they reappear in ISboxer when I load that. Fortunately they're not appearing in game as the character set isn't tied to them.

Now, despite that, I'm pretty happy with what they've allowed me to do. I'm really bad for being a clicker rather than pressing mapped buttons, so this is a god send for some stuff. I've made a bar that has 5 rows and 2 columns and made the rows the same height as the bars in my vhudu (sp) setup. Each row has a FoL button and a cleanse button. When I click on it, all of the paladins (DK + 4ret team) will cast a flash of light on the toon who's vhudu bar they are next to. Likewise for cleanse. I've setup 4 keymaps as macros to cover this.
I have another bar which is simply 2 buttons....one for the paladins to cast bubble (all 4 bubble at the same time) and the other is for avenging wrath. Despite this being a fairly straight forward thing.....it's great for me as it means that I can click on the button rather than having to stretch my finger to an out of reach keyboard/keypad button.

So my opinion is that although it takes a bit of time to get used to and there seems to be some UI bugs.....the functionality is great.