Ordered that the amended order is affirmed insofar as appealed from, without costs or disbursements.
The Supreme Court properly awarded the mother sole custody of the parties' two children. In making a custody determination, the paramount consideration is the best interests of the child ( see Eschbach v Eschbach, 56 NY2d 167; Friederwitzer v Friederwitzer, 55 NY2d 89). Since the Supreme Court's determination is largely dependent upon an assessment of the credibility of witnesses and upon the character, temperament, and sincerity of the parents, its determination should not be disturbed unless it lacks a sound and substantial basis in the record ( see Attain v Alain, 35 AD3d 513, 513-514). Here, the Supreme Court's determination to award the mother sole custody of the children has a sound and substantial basis in the record. That determination was supported by, among other things, the evaluation of the court-appointed forensic evaluator ( see Nicholas T. v Christine T., 42 AD3d 526, 527; Gorelik v Gorelik, 303 AD2d 553, 554).
The father's remaining contentions are without merit.