I love this show - I saw it back in January just before Lin Manuel Miranda left and it was terrific. Nothing really objectionable about the show - it takes place in Washington Heights over a scorching July 4th weekend, so the characters are all in their summer clothes (but nothing risque), some characters gossip in a hair salon, and in the opening scene of Act 2 it's made plenty obvious that two characters have gotten to know each other a little better - but again, nothing explicit is scene (she's wearing his shirt).
But it's a really fun show, the music is great (I'm addicted to"96,000") and it's got such a sweet story. I'd definitely see it - there were plenty of families in the audience when I saw it.