I also agree. I was taking an amazing spanish course at my school but then moved to a different school, and Duolingo replaced it easily. Now I am probably learning faster, more, and most of all, at my own pace.
I have used Livemocha, Rosetta Stone and Pimsleur. This program seem to be much more practical and is very well structured. It is not too easy, yet it is a good challenge. I am truly thankful to have another method of "keeping my languages Up!" . . . Thanks
This whole site is amazing. The learning techniques work superb; and I'm not having much trouble remembering which word to use, the pronunciation, and the spelling. The interface is also easy to use and gorgeous. This works WAY better than Rosetta Stone; thank you!