I used one for Italian .I’ve no problems passing their ultimate last level, maybe that’s because I lived in Italy for three years :)
I’m using it right now for French. I’m loving it.
I use it for Russian, and I love it. I took Russian for nine years in grade school, and I’ve learned more using the software.
My son in law used it and is about to take the test at work for increased pay for being bi-lingual. He says it’s great.
Every time I ask anyone I get nothing but positive responses. I guess I will take the plunge and try it!