It is definitely a relief. I switched from a consulting company (so I guess it is E-C model, who did my GC under EB3 PD 12/2009) to a full-time position at a client (not one fo the clients I had worked with before). First PERM was filed within 6 months after I joined, was happy. But it got into audit exactly when my 12/2009 PD became current. Had my PERM got approved without audit I would have been able to file I140+I485 during the 2012 fiasco. Then eventually that PERM got denied. Then started working on the second PERM with the same employer. By God's grace it got approved without audit. Peace of mind, definitely Yes, but certaintly still a log way to go as my current employer is giong thru a M&A process. Hopefully, I get to retain my job post the M&A. Otherwise, I will be back to square one.
My audit denial came about 10 months after the PD. In your case you are roughly in that same timeframe. You should be hearing form DOL soon. Wish you Luck!