ORM can drastically reduce the boiler plate code, especially when all you do is simple CRUD operations, Query operations. Most of the ORMs do provide a 'filter' sort of operation to add query params which would suffice the common requirements. They also provide the 'raw' query option to write complicated query if required.
We moved from SQL to ORM solution about 6 months ago. But we don't do any complicated queries at the moment. So I don't have any metrics on performance comparison.
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