I've actually found this to be among the better RPG's on the DS!
Alright, so it doesn't have hugely amazing graphics. It doesn't have animated scenes.
What it DOES have:
-Turn based play
-Riddle-like dungeons (with surprises)
-A victorian style/Steam punk theme
-An interesting Skill system.
One of the things other people have mentioned- Is, yes. You get attacked a lot in dungeons. But that's pretty normal. I've found it on the whole to be fun- and a good way to kill time. It was really worth buying!