I think there are interesting concepts in that UI (+ in the URL / split screen), but my overall feeling is that it's a bit hard to navigate and it misses some c

I think there are interesting concepts in that UI (+ in the URL / split screen), but my overall feeling is that it's a bit hard to navigate and it misses some core idea, core theme. I think UI's should evoke a feeling of ease and simplicity and familiarity for a user to feel comfortable using them.