I had a great time at Chantico / PLI (same thing), studying Spanish as a second language. (Most of…read moretheir reviews are on Google Maps, which is much more commonly used in Mexico, but I wanted to post here for my other US Americans who use Yelp.)
I took online classes weekly for 8 weeks about a year ago, and then was in person for 2 weeks. I had both online and in-person classes with Fer, who was great and put a lot into developing her own exercises and materials, and did a lot of conversation about various topics when that felt like my priority.
Overall, Chantico is super flexible to your needs and interests (you just book which hours you want to work with a teacher) and just a very friendly group of people. They do run some weekend outings to different attractions in the area as well, to see more things and get to know the other students.
I corresponded with Francisco beforehand and he was easy to work with. He made sure I knew where to go, what bus company to take, etc. When I arrived, he also picked me up from the bus station, and drop me off at the end. I wasn't expecting that but it was nice to be welcomed!
The Centro Historico area right by the school is beautiful, walkable, safe, and full of interesting and tasty things. And Querétaro is a good-sized place, so whatever you need, they probably have it. Spring was a great time to go, climate-wise--no rain, jacarandas and bougainvillea in bloom, really beautiful.
I briefly did a homestay and enjoyed it, but I caught COVID shortly before arriving in Querétaro so quickly transferred to an Airbnb (in order not to infect my homestay host) and got refunded the nights I didn't stay.
Francisco and Fer were both super accomodating and helpful when I had COVID--I didn't get very sick, but Francisco still delivered me groceries, checked in on how I was doing every day, and made sure I knew he would take me to a doctor if I needed to go. All super comforting when traveling alone in a new country where the medical systems, etc are different!
Overall I really recommend Chantico and Querétaro!