Reading the comments on this film or others like it is a frustrating experience, because so many people don't seem to be clear on the concept. Let me put it very simply:
This. Is. Not. A. Narrative. Film.
If you're going to complain about lack of a plot, character development, or other features of narrative films, don't go see a non-narrative film! It's an entirely different experience, and that's the whole idea. Judging an experimental montage of images and music and voice by the standards of a conventional narrative film is ridiculous -- like complaining about a drama because it wasn't funny. It's not SUPPOSED to be. If you don't like films that don't have a conventional narrative, don't see them.
So, for those who DO actually like experimental, non-narrative film, I'd highly recommend this one -- it's one of my all-time favourite films of any sort, even though know the majority of the population probably couldn't sit through it. I found it incredibly powerful, evocative and visually stunning, and even 15 years after seeing it, some images from it are still burned into my mind. I'm a big fan of Jarman's work in general, but if I had to pin down one single favourite from his work, I think this would be it.