I spent a great week at Tutima back in March. The aeroplanes are immaculate, the instructors are very good and it was 23 degrees and sunny nearly all week.
I flew the Pitts S-2B, S-2C and Extra 300L in a customized program. But they also do a very popular 5 day comprehensive APT introduction to aerobatics course. This also includes a lot of spin recovery practice.
I entered the USA under the Esta visa waiver program. There are no special restrictions on aerobatic training for international pilots.
No aerobatics, but here is a video that shows some of my training to give an idea of the setting.