I use capillary film and find it easier to get a good screen. I tried the liquid starting out and never could get a good screen. Once I switched to capillary, the quality of my screens were like night and day.
I would disagree that Capillary film is "WAY more" expensive. It may be a couple dollars more per screen. For a $300 order, $4-$6 is not much in the grand scheme of things.
Phillip you might have had problems with the film adhering to the mesh because you were not using the Ulano Mesh Prep. I also had trouble before I used it. You put it on the screen before applying the film and it causes the screen to hold all the water inside the mesh, so that it adheres very well when you apply the film.
I also think it's faster than using liquid. Cap film dries faster after being applied to the screen. And it also eliminates the step of letting the screen dry after degreasing. With film, you apply the film to the wet screen immediately after degreasing, which virtually eliminates any chance of foreign particles contaminating your screen during the drying process required by liquid emulsion. This is why pin-holes often experienced with liquid emulsion are non-existent with capillary film. And of course you also don't have to wait for the screen to dry before coating.
And lastly, you don't have to clean any scoop coaters!
But the main reason I like it better is because it produces rock solid screens every time (which is something I could not do with liquid).