I just finished Legend of Heroes: Trails in the Sky.
+Good graphics for a PSP game. Nice detail done to the environments and character sprites.
+Good story, with lots of characterization, and endearing protagonists.
+Sound is top-notch. Though no voice acting for the dialogue, there are some things characters voice while in battle. Background music is also well-done, even with extra music played when nearing defeat in battle.
+Solid gameplay, with everything used well. The game also lets you restart a battle if you've lost, which can be especially useful if you don't want to backtrack all the way from the last save point.
-It can start off slow at the beginning.
-No dialogue voice acting.
-The last battling part of the game can be a pain!!! Still defeatable, but quite a nuisance.
Overall, my first estimate of this game is 9.5/10. The game was very thought-out, and made with good effort. I'm really hoping for the next of the series.
On a side-note, check out this post on madraine.tumblr.com