I had a one on one language course with Mary. I really enjoyed each session. In the very first session I did a test which identified my language skill level, which was the base of the following sessions.
To improve my speaking ability we had really interesting topics to discuss. The grammar parts were suited to my skill level. I reached my target of the C1 level while staying in the US. If you plan on doing a language course, I strongly recommend talking to Mary, she can offer the type of course you prefer.
Thank you so much for this nice experience.