Reasonable expectations from cervical ADR

[sahuaro]

It looks like I may be having 2-level cervical ADR (c5/6 and c6/7) in the not too distant future. It seems to me from reading about others' experiences, that the successes have been remarkable. But I would like to have some sense of whether my hopes for the relief of specific symptoms are reasonable, so I would really appreciate your comments on whether you have had similar symptoms which were alleviated post-ADR:
(1) arm weakness, nerve damage: I am aware that this may not be reversed and Mark has posted repeatedly that people have unexpectedly recovered while others do not. At the very least, has there been a stop to the progression of weakness?
(2) tingling, numbness in hands
(3) electrical "zingers" down arms
(4) muscle spasms and guarding in neck muscles
(5) postural issues: my head is constantly in a forward position and slightly tilted to the right and I think this is getting worse; will ADR put my head on straight?
(6) decreased range of motion of neck
(7) problems with what seems to be proprioception: without visual guidance, I have trouble knowing exactly where my hands are (e.g., if I don't take care to watch what I'm doing, I will reach for something and end up with whatever is next to it)
(8) problems with fine motor skills including writing

I'd really appreciate any thoughts and comments!

Barbara