> Firstly, have to write out the SQL, then convert it to the ORM format, only to find the ORM doesn't support something you are using, so you rewrite the query

> Firstly, have to write out the SQL, then convert it to the ORM format, only to find the ORM doesn't support something you are using, so you rewrite the query in a more long winded way, then convert it to the ORM. Or you could avoid the conversion step entirely. If the ORM is useful 90% of the time and in the way 10% of the time then use different tools for the 10%.