Like many serial shows, it's kind of nice to have episodes that are more or less stand alone and not part of the overall arc being carried through a season - X-Files was a good example of this.
This episode felt like someone liked the Goonies and wanted to re-create that, but didn't have the budget for it.
Like many episodes, it makes you wonder just how the person that Ben jumps into can re-incorporate back into their lives without having thousands of questions.
The last couple of minutes seemed like a desperate attempt to try and create more pointless mystery. We have a show where someone can jump through time into other people - if you can't create compelling stories around that feat, then what are you doing? The back-home team is just growing too large and convoluted.