Our VT recommended 36-48 weeks of treatment. The contract was about $7K. Instead, we chose to get one unit of 12 weeks with an option to extend. If we did the whole course it would a bit more than prepaying all at once, but it looks like two units/24 weeks will probably be enough, and we were able to see some progress before paying for the second unit.

Yes, progress. Before, DD8 could only comfortably read a font with inch-high text on a dark background, on the iPad. Now she can read a normal book! Her pencil control is improving, too. She wiggles less; she used to be in constant motion. I wonder if that was her way of getting depth perception, with eyes that couldn't coordinate well?