I'm a librarian who loves anime, manga, and reading a wide variety of genres.
I'm now finished with this. It was...so so. Boatloads of nostalgia, but not much of the stuff that I loved about the show. It was very aliens-centric, and the aliens + black oil storylines were never my favorites. I wish there had been more stuff like the Flukeman episode, although maybe less chained to storylines and beings from the original series.
The format resulted in a lot of odd dialogue ("Excuse me while I describe aloud everything that I'm currently seeing, since the audience can't see these mysterious lights themselves"), and the ending was a bit of a mess. Still, both Mulder and Scully had some nice lines, and I found that I appreciate Scully as a character even more now than I did back when I was watching the original series. I'm going to think about my final rating for a bit, but I think I'm leaning towards 3 stars. It could have been better, but the nostalgia factor made it a worthwhile listen for me.