NTI / online classes went mostly ok for us, other than some early hitches and one confusing, mean teacher who no one likes anyway.
If they do this again in the fall, I think it will be much smoother. The teachers did a good job with what they had to work with and with the brief time they had to create entire curriculums in Google Classroom. Only one of his teachers had used Classroom before.
We're in Louisville at one of the better middle schools in the state. It would be extremely difficult to pull off for schools in low income, rural areas with large areas that don't have widespread broadband.