One of the worst in the series, which ends up making it a passable SRPG.
For example, the first FE game I played was the first one for GBA, which featured support conversations. This cool game mechanic gave certain characters stat boosts when they are close to each other. It also gave a number of interesting dialogues between characters, fleshing out many of the minor characters into real people with real personalities and goals. In Radiant Dawn, however, this has been reduced to single sentences. What was once an opportunity for interesting dialogue is now one character saying "Keep it up!" while the other one responds with "Do your best!" Considering there are so many interesting characters in the game, it's a shame that none of the minor characters really mean anything to the player anymore.
Another problem I had with this game is the difficulty. Like I've said, I've played every English entry in the FE series, and this one is definitely the most difficult. As if the trademark "perma-death" in the series didn't make it difficult enough, Radiant Dawn has no problem putting you into situations where a single wrong move will make you lose a character permanently. And while the option to save before you make any move alleviates some of the frustration, it also makes the game feel...different. It feels like while it's too difficult to rely on your wits and ignore the mid-battle save feature, using makes your moves feel inconsequential, since if i turns out you made a bad move, you can simply undo it.
I personally feel that the story did a good job of wrapping up the narrative from Path of Radiance. However, despite the solid story telling, the weak leading character, Micaiah, ends up affecting the narrative in a negative way. Never in my many years playing games in this series have I felt so distant and irritated by a leading character. Eliwood, Hector, Lyn, Marth, Roy, Ephraim, Eirika, and Ike are all fantastic characters. They're strong, relatable, and just extremely easy to like. Micaiah is fairly weak (in terms of her fighting ability) and has EXTREMELY questionable morals. I won't give anything away, but I don't think I've ever been so appalled by the decisions made by a protagonist in a video game.
Despite these problems, I found myself playing the game for hours on end. The fact is, if you like turn-based strategy RPG's, you'll probably at least LIKE this game. Think about it this way: I've played every other FE game 2-3 times, and while I've only played this one once with no intention of a replay, I'm glad I at least played it.