Man what, I liked Wild Arms 5. The 4th is pretty terrible from what I've seen, though.
I bought this game day one and I sort of regret it. If it is on sale or something it might be worth getting though?
One thing to keep in mind about this game is that it is a puzzle game and not really a strategy RPG. The stage designs have extremely specific solutions to all scenarios, and you usually have to change your party's jobs around before every fight to exactly the jobs that the situation calls for. You are not really free to build whatever party you please. While the jobs are all well-balanced in terms of combat, the game scenarios call for such specific configurations (mission briefings give you hints) that, usually, fighting is kind of secondary to puzzle-solving.
Given that it's a pretty interesting game and it's pretty cool to see something with such intricate design. It certainly does feel like other Wild Arms games in that it is extremely heavy on puzzle-solving and I've never seen a turn-based RPG really focus on puzzles in this way.
The writing is probably on the better side of most Japanese RPGs, but it isn't great literature or anything. It does add to the game instead of detracting to it.
This is pretty much dead on. It's sad, because the battle system is really really good, but the game focuses too much on the puzzle solving(despite how good it's integrated into a battle system like this). I would say it's even better than FFT in terms of classes.
The one thing I don't like is how cutscenes are played out. Not only is the voice acting terrible, but I dislike character portraits over a panorama with text showing. It's hard to get any sort of emotion out of the player when a game plays like this, and it makes me not interested in the story at all. I only played through a couple of hours of this game, and the only thing that really kept me going was the music.