Who's excited about this? What's your use case that just became viable because of it? Definitely don't mean these questions in a condescending way, just want to get a read on the pulse from the folks here that will use it :)
All of my Asian bandwidth comes through LA or Vancouver. Big, cheap peering with other telecoms to cross the ocean. We already have a decent colo presence in LA, this will allow us to consolidate some of that, and move other VMs.
Google has a new facility in the area as well: https://cloud.google.com/about/locations/la/
But, maybe it needs to do super high quality realtime 4K greenscreen that would overload an embedded CPU, and there's a built-in AWS library that does it, and the bandwidth is high enough, and you don't want to buy dedicated greenscreen HW that sits next to your booth (which is the other thing we did) then maybe.