I can sort of live with non customisable relays. I was only really using global feed for the welcome wine relay cos it's interesting and nice to see the flow of new people (and alts). But that is actually a fun experience.

Also not sure if it's on purpose but you sort of have to go to another page to see/reply to mentions. I wonder if that's on purpose to add an extra step (like the undo option) before you reply lol. Ponder the gap between feed and mention zen UI lol