You can't exactly make a judgement on the already released patch if you haven't even seen it or tried it for yourself. A lot of the issues
@wallflowertrist mentions have been fixed in the V2 release of the patch. I have confidence in Darksigil that his patch will be more than welcomed when it is released, but to say that the Full translation patch out right now isn't as "high quality" is incorrect. For what it offers, it is really good.
I have been using it myself for the past two weeks, and since then I have yet to run into issues or crashes. To try and bring up "legality" on a forum of this nature is pretty ironic, as even playing the game on anything but a stock Japanese 3DS breaks ToS 50 ways to hell.
Still, there is no doubt that I'm eager to have a properly translated version of the game which offers no caveats.