I somehow doubt that the Steam version's translation is going to be much better... but I suppose we can dream.
As is, the game is seriously, painfully easy. The stealth elements go out the window 10 minutes in as you easily over-level and then just one-shot everything. Grinding is basically minimal and you grind more to get H-scenes than anything else. XD
The increased max MP mechanic is also rather useless because spell costs seem to be percentage based, rather than flat costs, so it's not like you actually get more spell usage with more MP. Which means that going out of your way to make Effy uber lewd is entirely wasted.
Lastly, the game reuses CGs a lot... not as badly as some other games I've seen... but enough so that the janky translation makes a lot of the scenes lose a huge amount of value simply because you can't enjoy them properly in their current form.
So in its current form, the game is fairly average. If it ever gets a good translation, maybe I'll pick it up again and see if I revise my opinion of it.