I like how easy Datomic makes deploying databases to AWS with its built in connector for DynamoDB - this allows me not have manage my own DBs & tables or worry about maintaining them! Also very happy we didn't need extra services such as Cloudant/BigQuery which would've been more expensive than our service plan (we're using free tier). We don't yet use all functionality but there's definitely potential here given what they do offer out their platform at no cost compared to other solutions available now. Easy deployment via cli tools + ability integrate into existing projects without additional dev time = win!!