This is a very enjoyable episode, particularly because it is so different from most other TNG episodes. Captain Picard goes on vacation for some much needed R&R, but excitement follows him there!
This episode works to a large degree because of the chemistry between Patrick Stewart and Jennifer Hetrick. It's a nice, combustible pairing between two independent, strong-willed characters. The story is a good one as well, with several competing parties looking for a long-lost artifact. A nice echo of the Indiana Jones movies.
Finally, while humor cropped up frequently in TNG, this is one of the best light-hearted episodes in the season's run. I guess my assessment of this episode is higher than other fans', perhaps because it is so different.