I've got the LF+ 12+, which I know is different than what you have in both size and family/generation. However, I suspect the answer for yours is the same as it is for mine, which is that right now it's just a MIDI controller. It works perfectly fine as that, but doesn't show tap tempo blinks, doesn't work with the tuner, and doesn't sync any preset or IA state over automatically like it did with the II.
Hopefully now that the spec is out, Jeff/FAMC will eventually update the + series to support those extra features. I'm not sure how likely it is he'll upgrade the original series though.
But again, it should work just fine as a traditional, highly programmable one-way controller. At least for me the plus has, and I don't see why the original series wouldn't be equal in those features. Any particular questions/problems?