long distance relationship

I would like everyone thoughts on long distance relationships if they did it before , if they believe it works , if it worked out for them , or if it didn't work out for them. 😬
Me & my ex are deciding to get back together we decided that if we do long distance for a year & it works out than one of us will make the decision to move he lives in charlotte NC & im in AZ although we will each take a turn to visit each other each month