Damagemeters/CombatStats/Recall/etc: good or bad?

[swirly]

This thread and seeing people discuss damage in game makes me curious enough to consider trying one of these addons. So far I have seen two listed here: Recap and DamageMeters. I'm wondering what people think of the two, any differences that need to be known, and which they would recommend. Just from looking at those two pages, Recap seems the fullest info wise and so I'm tempted to try it.