Ok so I saw it.
You know, I actually kind of liked it.
First off, it seemed like this was made for the fans.
There was never any real concluon or ending for the series and this felt more like an "ending".The actual plot to rescue the misng persons seemed to take a back seat to the issues of Mulder and Scully finally moving on with their lives (which was the sub-plot).
It really is just a big episode so don't go into this thinking you're going to see the next greatest thing.
If you were a fan of the series and would like to see Mulder and Scully take one last crack at the X-files then you'll probably really enjoy this.
So, if you want to see what SHOULD have been the series finally then go see this movie.
. . . and it was nice to see a "familiar" character show back up for old times sake!