Casa De Mi Padre is that trailer to that Will Ferrell movie that you probably will see someday on TBS a few years down the road. The Spanish soap opera spoof demands a score to go along for the ride and Andrew Feltenstein and John Nau answer the call. The composing duo haven't had many high profile gigs yet and have done direct to video stuff like Wild Things 2. The soundscape for Casa De Mi Padre is a decent one, and as a standalone listen presents itself as something different than what you're probably used to listening to.
The score plays it pretty straight while replicating a sort of Mexican groove type of sound. The cast contribute some comical songs to the album as do some other artists. So as a whole this does become a bit of a song album, but the score and songs work really well together. I can't really say anything bad about the music because the execution is pretty great. I can't say the score is anything fantastic either. It is what it is, and honestly you can't expect much from this Will Ferrell sleeper. The tunes play very well and as background music it works. Since there isn't much score here anyway it doesn't play out the story very in much depth. The comedy clearly comes from the fact that the music plays it straight, so on its own the music isn't "funny". In the end it's a so-so experience.
This score is neither good nor bad. It is what it is and has some pretty nice arrangements from the composing duo. While the material they're working with isn't anything spectacular they do make it work. I would recommend it as a listen just to hear some great new talent. If you loved scores like Austin Powers or Nacho Libre then you may get a kick out of Casa De Mi Padre since you can get the styles the music is referencing.