Very excited for this. When "Inbox" came out I was excited for a lot of the modern amenities but it was so dumbed down from gmail and missing a lot of core features, that ultimately switched back to using the classic Gmail interface, even though it hasn't received much love in a while.

Since they have a separate Inbox product, hopefully they will be able to refresh it with all the new modern bits, without removing any of the advanced power user functionality we have all come to love and relay on.