12 seconds to load fully here (that's 11.90 seconds too long - can't they store some stuff in local storage or...?) - and of course it's not really usable until it's fully loaded. You could start trying to type but it'll not do anything, or stuff will move.
Opening the 'Updates', er, 'section' with 2 emails in it took 2 seconds, which is silly.
I love the flow of Inbox but I'm seriously considering going back to a local client. Are there any good ones left these days? I liked mutt, but using it with an IMAP mailbox made it a bit clunky. I just need to work /fast/, without crashes, without spam, and preferably with vi keys and programmabil... never mind the last two, I can live with the speed, stability and spam-free parts.