This was our second cruise on Norwegian, and likely our last. We chose the Epic for a trip with my partner's mom mainly because of the excellent value of the Haven Family suite compared to getting two balcony cabins for only 3 people. We had sailed with Norwegian on the Pride of America in Hawaii years ago when freestyle and the ship were new - and we enjoyed little about the experience, but because of the good deal, we rolled the dice and took a chance again.
Let's start with some positives. The Haven is a great idea on on a ship that is freakishly large, and that can - at times - feel crowded and a bit like being at the mall or Six Flags. The Haven gives you the chance to avoid most of the negative parts of the experience. The room was huge, fantastic, and very well designed, and our butler was fantastic about helping with virtually anything we needed.
Additionally, the shows were pretty good and we enjoyed the restaurant in the Haven more than most of the pay restaurants. There was always food available somewhere nearby, and the staff overall were very helpful and friendly, even if they weren't always able to resolve whatever problem you might have.
This cabin is excellent. If it were on a Celebrity ship, I might never leave. I also can't say enough good things about our butler Sumehd. We would have enjoyed the cruise far more if we had simply spent all or our time in the room. I might consider this ship again on a repositioning cruise when there is nothing to do but hang out in the Haven and in the giant bathtub.