Yeah, I imported the dual-language version when I saw that the US release of Justice For All had been pushed foward to Jan 2007. Apart from a few typos and the odd strange translation error, it reads just as well as Ace Attorney.
IMHO it's a weaker game than Ace Attorney, though. Some of the locations in the final case are a little bland and, seeing as that particular case is a little overlong, having to revisit said locations is a bit of a chore.
Plus...
Spoiler:starting the game off with an amnesiac Phoenix just so the game has an excuse to explain how the interactions work is a little annoying
Other than those (admittedly) minor problems, I would still have no problem recommending people import the game.