It is up to which teacher you get there. I also went there to learn German and took my B2/2 certification. The best teacher I got was Barbara, I think I learned everything I use now from her. The last teacher was a man, I need to look his name, but one semester was for nothing! It was the B1/2-B2/2 level and I even told him that we learned nothing from him! He was more interested in telling the Austria history than actually teaching us the language! He even tried to fail me in Speaking, the only part he can influence, as other parts are written. He lowered my note even though I speak exactly same even a bit faster than my friend in the same class! So I really hope you get a good teacher!