First off this mission is just what they wanted, inspiring. 4 civilians, with varied backgrounds and experience levels, took a SpaceX rocket into high orbit for 3 days. Completely various tasks and just showing it can be done. So, so, SO cool.
The doc series is REALLY well done though, also. By the time they're ready for launch, you are invested in these people. You have ownership of the mission, interest in it's success and nerves for it all.
If you're even remotely interested in "space stuff", I can't recommend this series enough. I actually texted my wife, immediately after finishing it up, and asked, "would you let me go to space if I really wanted to??". She said, simply, "I don't know". Hahaha. Fair.