I noticed a small but very annoying problem with AG. When something about a target (or a pet) updates, the frame doesn't always. For example, if I change pets, the frame will change to the new pet, but the level will remain the level of the old pet, unless the new pet levels.
The most noticable problem is the [tappedbyme] tag. I added it to the class text using the custom text area, and when I tap a mob, nothing shows up. In order for the frame to indicate that I've tapped a mob, I have to deselect, then re-select it. This can be extremely annoying..