I took Spanish classes in Buenos Aires for 10 days. You can choose between group classes and private lessons. Even if you are over 50, it's really easy to fit into the group lessons and to feel comfortable and at ease to participate in class. The teaching method is excellent. You will learn a lot of grammar, but will also converse quite a lot. My teachers Marina and Romina were amazing, but I'm sure the other tutors do a great job as well. The instructors are very helpfull; they even offered to assist my husband with his archival research in Buenos Aires. I can definitely recommend signing up with this language school!