FaunaDB is hosted in several AWS regions around the world, so the latency is similar to DynamoDB if you're colocated. We will expand to more AWS regions and other cloud providers soon.
The biggest operational difference between FaunaDB and DynamoDB, aside from being globally distributed, is that you don't have to pre-provision capacity in FaunaDB. DynamoDB requires you to provision capacity per table and you have to pay for whatever you don't use. If you go over the provisioned capacity your app stops working. FaunaDB is delivered like a utility; you just pay as you go.
Also FaunaDB supports joins, transactions, unique indexes, views, etc., and you can install it on-premises if you want.
The biggest operational difference between FaunaDB and DynamoDB, aside from being globally distributed, is that you don't have to pre-provision capacity in FaunaDB. DynamoDB requires you to provision capacity per table and you have to pay for whatever you don't use. If you go over the provisioned capacity your app stops working. FaunaDB is delivered like a utility; you just pay as you go.
Also FaunaDB supports joins, transactions, unique indexes, views, etc., and you can install it on-premises if you want.