I think one of the saddest part of this post is that nothing that we say will matter to WD about the problems with the latest firmware unless it completely bricks up your device.
The device doesn't sleep? - yup won't get fix ever again.
smb problems? as long as you can connect, you are fine.
So if you have a work-around for any of the problems that you have encountered, please post them up.
I think this version is going to have to last us for a few months before the next release and that one will most probably just add more problems rather than fixing the ones we got now.
Just going by how things has gone down here for the last six years.