We do use extensively in a team of 50+ engineers. Loading an epic may last 10-15 seconds, triggering the buttons to open the pop-ups menu is sluggish, etc. I

We do use extensively in a team of 50+ engineers. Loading an epic may last 10-15 seconds, triggering the buttons to open the pop-ups menu is sluggish, etc. I think the main problem is that the browser has to render so many elements, most of them are not even related to the page I am opening. For example, opening a story, it loads behind hundreds of cards before opening the "modal" dialog. These modal dialogs are the most frustrating experience in SC – they close with the ESC key while you are writing, and it already happened the story I was writing was not saved, despite the obnoxious toast alerts saying the contrary. Modals also often breaks "modals menu" in Safari placing them in random places of the UI. They don't use the whole viewport so there's lot of distracting noise in the whole UI. Some time ago there was some weird cartoonish animations popping out during my work. What a nice idea to consume even more browser resources and get into the middle of your workflow :(