ADO .NET Entity Framework Vote of No Confidence
I am a bit late on posting this, but I suggest taking a look here to read some of the community reactions to the issues we have observed in the Entity Framework.
I will let the document stand on its own, since there is no way I can be impartial here.
I would like to state something (which I also told the Entity Framework team in person):
If someone manages to come up with a kick ass OR/M solution that does what I need (allow me to create maintainable and flexible solutions and has the expendability points to be used on real world projects) and which I, personally, don't have to (help to) write, I would be utterly overjoyed.