Depends when you go. Sometimes there is no line. I wouldn't bother going again myself, wasn't that great. Just sayin.
Small line Thursday afternoon. I'd rather go to the boozy ice cream place. It wasn't that good.
Not long
Took about 5 minutes myself. Weekday afternoon
Depends on when you go... anywhere from 5 min to 2 hours. Google has a good analysis though on least busy times... check it out before you go.
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