I went a few years ago when it was at the XL Center. I really enjoyed it! There was one area toward the beginning - when you walk down a recreation of a first-class corridor; my friend and I both felt a chill. It's amazing what was salvaged...we questioned the size of the lifeboats, if what was projected on the floor was actual size...touching the "iceberg" was interesting...
It was quite moving. Very worth it, IMO.