Poronico
Ridentem dicere verum quid vetat " Horace "
Has anyone used this program to help with learning a new language, or freshening up on one that's already known?
Yes. Don't try learning Hebrew with it. Or Chinese, for that matter. Many languages are fine. Hebrew is an utter disaster. Of course, your mileage may vary.
The issue (so much as V2 is concerned) is that it defaults to a pseudo immersion mentality...so far as to set all the menu text to the target language. The result with Hebrew is an entirely new alphabet, describing menus you are unfamiliar with in entirely new words...that look like gobledegook. A combination of common sense and random clicking will get you going in the proper direction but ultimately, you'll still never know what many of the menu items actually said, nor the distinction between the characters in the alphabet. You'll learn the entire words based on sight and sound. For modern Hebrew this is perfectly fine until you are faced with unpointed text. Of course, since you don't know the alphabet, nor the pronunciation of each character...you'll lack even the remotest notion as to what to do.
Clearly, be aware that it's not aimed at mechanics or fluency so much as functionality. And at that, it excels.