(it's well) worth it
1. it is useful or important Writing the book is a lot of work, and there are times when Hart wonders if the effort is worth it. If you want to have a good time traveling, it's well worth it to spend time reading guidebooks before you go.
2. it is rewarding despite the difficulties involved It was a long climb up the hill, but the view from the top was worth it. Even though he knows that love can hurt, he still believes it's well worth it.