I don't usually write reviews unless I feel very strongly about the movie or I feel the other reviews are mostly nonsense from people who either didn't actually watch, pay attention, or understand the movie. Consider this the latter.
Discarnate was not at all difficult to follow or confusing in any way. If you actually pay attention, as another reviewer pointed out, the characters explain everything that they've set out to do as well as everything happening. Personally I thought the creature was very cool and creepy, however minimalist the overall look was, it was still effective.
The production values were fine. Obviously they didn't have a huge Hollywood budget, but it's far from B/low budget, mostly what you'd expect from an independent film. The cast, many of which are familiar faces to the horror genre, including Bex Taylor-Klaus, Josh Stewart, Thomas Kretschmann, and Chris Coy, all did a fine job with their roles. So while, yes, like 95% of horror films in existence, there were some clichés, tropes, and a stretch in believability from time to time, overall Discarnate was a pretty decent horror flick.
My advice, as with every movie, ignore all the reviews (including mine), watch for yourself, and form your own opinion.
