Never saw the first one before seeing this so I have nothing to compare it to. Unless you count about 100 other similar movies and TV shows. This is a mixture of "see", "A Quiet Place" and a few others. Not very original, which is the first issue with the movie.
The other issues are some of the characters which are not sold so well, acting need some work. The CGi/FX is not good, and I think the music score could have been a lot better to sell several scenes. I also think this is not creepy enough i.e. The directing is not on point.
With those negatives out of the way this is still a decent watch. The Spanish is fairly easy to understand and they speak English in many scenes so language is not an issue. Not that this movie really need you to understand everything language-wise but just so you know. The storyline is interesting enough, and the pacing is great. I think this can get a cult following and I would not be surprised if they do a few more of these, set in other locations.
I give this a generous 6/10, and I think the movie is worth your time, But don't expect anything great.