AGE is one of those shows where I enjoy watching it for its color and flash. The surface emotions are done well enough that, if you don't really stop to think about it too hard you can get into the flow.
The problem is that if you DO stop to think about it, you start running into a lot of issues with the narrative. It runs pretty heavily on Idiot Plot a lot of the time (in that everyone but Grodik and Wolfe is an idiot) and the Faradin arc in particular doesn't really make much sense when you really look at it closely. It really plays off as a plot that would work a lot better for a JRPG than an anime.
Now, this is a problem but at the same time AGE has a leg up on 00 in that, unlike Setsuna's Stupid Adventures, the plot does not actively try to force you to pay attention to its dumber elements unless you want to.
It also has the issue that sometimes mecha like the Titus and Spallow (as well as a pretty spoilerific robot that shows up in episode 14) just seem really out of tone, design wise with the story the show is trying to tell. I really like them on their own but they are a little ill-fitting.
So if you want to watch something that can be fun to watch and is fairly well animated AGE does the job. However, iif you're looking for a big, sweeping, intelligent mecha drama... look elsewhere.