好客 vs 亲切 - both mean hospitable?
They are actually quite different.

『好客』means someone is willing to be visited by guests, so hospitable is correct understanding. It's more focused on visiting related stuff.

『亲切』basically means kind and warm. You don't need to be 『好客』 to be 『亲切』. You often use it when you feel someone is generally kind in his/her interaction with you.