What are the advantages of 1:1 tutoring?

Three that actually matter. The pace is set by your child, so nothing is skipped because the class had to move on and nothing is repeated because others needed it. The feedback is immediate — a mistake is caught in the sentence it is made in, not a fortnight later in a marked book. And the plan is specific to the gaps your child has. The honest trade-off is cost: it is more expensive per hour than a group class, and it should be.