I had such a good experience with the homeschool edition (version 2) of Rosetta Stone - that I decided to get Version 3 for myself to learn French.
One of the first things that struck me that I love, is that you can put the language CD into the computer and fully load it. Meaning that I don't have to take the CD in and out everytime. After a simple quick activation I am up and running. I can add 5 users that can each have their own unique username.
Another thing I noticed was that the interface has completely changed. I love both styles but it was nice and refreshing to see something new and different from this company.
I love the instant immersion. I think it promotes learning and provides a challenge for me to learn more, faster. i really love this software and I am sure that I will be purchasing more languages in the future!!