When NOT to use the Entity Framework

Question

I have been playing around with the EF to see what it can handle. Also many articles and posts explain the various scenarios in which the EF can be used, however if miss the

Answer 1

Not all data models map nicely to application Entities. If the mapping isn't relatively straightforward, I'd skip the Entity Framework. You'll find yourself doing handstands to make it work without any clear benefit.

Anders Hejlsberg had some interesting comments about object/relational mapping here.