I think the fact that you get online coaching and lessons and can pay $75 a months (5 months) makes it a good deal. No other program really lets you ask the questions you have. It's a program I like to go back to (and I have the old, no frills one) occasionally just because it's good practice and simple. It's easy to cheat but the newer one makes it a little more difficult. I don't know if it's "the" program to have, but it's certainly a decent one.
It also depends on the person using it. Pimsluer, while good, is much more boring.
You can get a $10 trial edition (or find it at the library sometimes) to try it out. You used to be able to do the same with Rosetta???