Experiences with Spanish language classes (Lima)

Dear all,

I will return (after an intermezzo in Doha/Qatar) to Lima in the next two weeks. As my spouse is Peruvian, and my daughter was born in Lima last year, I'd like to take Spanish/Castellano language classes in Lima.

Of course there are several language schools if one searches on Google. What's the thinking of expats? What are your experiences with "full immersion" language classes in Lima? Why would you recommend a certain school?

Thanks a lot for feedback,
Mirko

P.S. I don't need self-recommendentations of local teachers (surely there are many) or schools...