I get lost in my work/play quite a bit and often forget about meals. I'd definitely be interested in trying soylent simply as a meal replacement, especially if ingestion/preparation of it is quick enough not to break my workflow.
There are a bunch of different liquid feeds available. Well known brands include Ensure and Fortisip. ( https://www.nutricia.co.uk/fortisip// ) ( http://ensure.com/ ) These have the advantage of careful preparation and high standards of QA.
What are the downsides of these compared to Soylent? I mean, what's the motivation for Soylent if these already exist?