dotConnect for Salesforce is a solution for integrating data of the Salesforce.com cloud CRM and Database.com cloud database with widely used Microsoft data development technologies. It includes Entity Framework provider, ADO.NET provider, and offers Devart Salesforce Source and Destination components for SSIS packages. dotConnect for Salesforce offers local SQL engine, advanced data caching, and other enterprise level features.
We had been using an outsourced company for such projects until we decided to hire our own team and do all of this DB work in-house. So this was our first year of experience with this product. So far, we're very pleased, as are our clients.