My experience is that ORMs fail at dealing with reports, searching data and all large data updates. If all your application needs is a single row of data tied

My experience is that ORMs fail at dealing with reports, searching data and all large data updates. If all your application needs is a single row of data tied to some other set of single rows of data then an ORM might be of limited benefit to you. I have had multiple contracts to fix the performance problems introduced by ORMs. In the test database the ORM was good - in the real world not so good.