Some couples in open marriages report high levels of satisfaction with their relationships. A study conducted by Wolf found that 76 percent of couples in open marriages described the quality of their relationships as "better than average" or "outstanding". Dixon found similarly high levels of marital satisfaction in a study of 100 bisexual and heterosexual husbands in open marriages. In another study, Dixon observed that 80 percent of wives in open marriages rated their marital compatibility as "excellent" or "good", and 76 percent of the wives rated their sexual satisfaction as "excellent" or "good". Buunk has also reported high levels of satisfaction in couples in open marriages.