As I writer, I love Prologues. I often start my books with them because I want to warn the reader about something, or give them a hint about a future event, or just make them curious. It’s not exactly throwing the reader into the action but I like to give a hint about the sharks circling before they make that leap.
As a reader, I love Epilogues. I love that last visit with the couple, a glance into their life—after the story—to prove that they are living their happily ever after. It’s like dropping in on an old friend and finding out that yes, things really did work out.

I have a couple of favorite Epilogues. So favorite in fact that I recently dug through my keeper shelf to find a book because I wanted to re-read the Epilogue. A line from it was stuck in my brain and I wanted to experience it again.
My favorite Epilogue…To Love A Dark Lord by Anne Stuart. She writes such great dark heroes that having that Epilogue is comforting. It tells me that he did settle down. And that all the things he warned her about at the end of the book have come true. This was the book I went looking for last week. I skimmed the book, to reacquaint myself with the characters, then skipped to the Epilogue. I’ve read it twice more since then.
My other favorite Epilogue is in Lover Awakened…the scene in the gym just tugs on my heart that I go back and re-read it whenever I need a lift. Zsadist is so damaged that you need that glimpse into his life after the "story" ends. I think this is why series books a so popular. It’s a final check in with the characters. You get to visit old friends.
So don’t be afraid to give your readers one last glimpse so they put away the book with a satisfied “ahhhh.”