I, for some mad reason, chose Sydney as the central region of our global serverless infrastructure with a single replication region in Europe. In testing it led to some slower access times from Europe and the US during sign-up.
I decided to bite the bullet pre-launch and change this.
With replication regions in the US and Sydney to ensure a strong global spread and response times for launch.
If you aren’t 100% committed to infrastructure as code you are in for a painful time in the cloud, especially serverless.