I tried it out and the UI is poor. Things like clicking buttons don't result in any user-visible action, like a page loading, or even something bad (but not as

I tried it out and the UI is poor. Things like clicking buttons don't result in any user-visible action, like a page loading, or even something bad (but not as terrible as nothing) like the button changing contents -- a couple of seconds later the next step happens. This means clicking is click, hope for the best, wait 300ms, get bored, click again, give up. Same for the search, type in a term, the list of icons disappears, and is repopulated when matches are found -- unless no matches are found then nothing happens, you have to wait until you are pretty certain that the blank icon area means no matches and not searching.