Easy to use, easy to understand for newbies as well as experienced developers. It has good support from team if you have any query regarding its usage or configuration settings. Free trial version can be downloaded which will help in understanding it better before buying. I haven't found anything specific at this time but would like there should be more advanced features added soon so that all my requirements are covered. We were working with legacy database using ADO.Net where we needed to extract some of our stored procedures into C# classes. We had no idea how these entities were generated by SQL Server. With tier developer's feature called "Mapping" we created those entities and used them along side existing databases.