These architectures are super interesting to me. We are using the ~equivalent SQL Server architecture in Azure right now (Hyperscale tier) and really enjoy the

These architectures are super interesting to me. We are using the ~equivalent SQL Server architecture in Azure right now (Hyperscale tier) and really enjoy the experience. Not having to worry about specific machines and being able to treat it the same way as an express instance (from an app perspective) are extremely compelling selling points. The only downside I saw in the Microsoft offering was the fact that there was a throttle for transaction log writes (100 megabytes/s) which is required to maintain resilience across the cluster. You don't want your replicas to wind up 3 weeks behind, etc. My hope is this limit will only increase with time, but even so it is quite workable (for us) today. I may spin up an instance of Aurora (when available) to take a look at how it behaves around our worst-case serialized txn paths. Our use of SQL Server is very "light" in terms of its weird claws/hooks, so we could pretty easily shift to another RDBMS vendor in the future, assuming we can sell our clients on the 3rd party mix.