I hate to say I think it actually went well for him. I don't like his answers, but his delivery was good and he stayed calm and congenial. The MAGA movement will be even more dangerous if they lean more into this style of likeability while maintaining the same terrible policies.
Here is the entirety of JD Vance's appearance on The View, which did not go well for him
(and kudos to the hosts for actually asking him hard-hitting questions and followups)