The UI isn't all that intuitive, the 'ask to save'/'ask to update' prompts don't work that well, but I don't really blame them because they are injecting into the DOM which usually changes. As someone else mentioned, it's a bit slow to sync and load sometimes. I wish it was more obvious when I have an existing session with the desktop app which can send a token to the browser extension to keep it loaded.
You can tell i'm really reaching for bad things to say about it, haha