[imcritic]

Poor UI, judging by the screenshots on that page. Another piece of software that treats users as imbeciles in dire need of being saved from "clutter".

[jofzar]

It's pretty much a 1:1 copy of arc, which IMO has the best browser UI/UX I have used.

[cassianoleal]

I think you missed the "If you like Arc" at the very beginning of my post. If you don't like Arc, then Zen is absolutely not for you. And that's fine.