Jessica was kind and patient with my kids. They loved her and had a great time. We did a 16-lesson package at 90 min per session (45 min for the oldest and 45 min for the two youngest together). After about 10 lessons, the oldest (8 years old) had learned how to swim; the next oldest (4) started to swim by herself; and the youngest (3) did not learn how to swim but became less afraid of the water. All of them made major strides, and I will most likely follow up with additional lessons next summer to reinforce what they learned.