Congrats to the Arango team! I used it at my earlier workplace for computing suggested friends/followers which replaced an older service (Postgres + redis and application server-side caches). The resulting solution was faster, ran on a single modest machine (8 GB RAM, 4 cores) and allowed us to spin down 3 higher-end machines and reduce a layer of caches on application-servers. Writing the microservice using Foxx (which is built-in to Arango) was a pleasure and the easy deployment + Swagger API was a great developer experience. The community slack was friendly and helped me out with some AQL.