W.T.
I don't have any insight into that program, but what we have done here to support my 2 1/2 year old in speaking German is to hire a German woman (recent college graduate) to come and play with him at home. She charges $10 an hour and comes twice a week for 2 hours each time.
All she does is speak German and play. I speak some German at home....he has picked up a lot and quickly. He will be going to an all German preschool in the fall, so I want him ready.
Look on Craigslist. There are lots of college age kids around who speak Spanish and are good enough with kids to play with your daughter in her own home while you are there. The nice thing about that is she gets one on one instruction and gets to play in a relaxed situation which is ideal for language learning.
Just a thought.
Good luck!