I have been using Telerik OpenAccess ORM for less than a month and I am thrilled with how easy it is to create complex CRUD screens. We are currently using a third party product as an ORM. While this product is mature and can do anything, CRUD with it is painful. With automatic change tracking and direct support for SQL Server Compact 3.5, OpenAccess allows us to write our CRUD modules in a fraction of the code required with the other product.