I like how easy it was for me as developer, without any coding knowledge or experience in NodeJS/Express Framework,to get my application up-and running quickly with minimal issues! The documentation could be more thorough (esp. around authentication), but overall very well done by this team!! If you're looking at Express + Socket IO framework combination then definitely go ahead & give them chance - they have really awesome support staff who will help your every need :) They also offer paid services which can save some time if there's no free trial available yet :). We are using netBeasts API Gateway(SocketIO) along our Angular app built entirely from scratch through their amazing APIs library called nbjs! It allows us access all features we needed such as user management via LDAP authentications etc., realtime notifications between users within same organization / across different organizations too.