The Beretta 92FS was my first pistol. I was a novice, but I felt it was horrible with accuracy. I kept it for a long time, reluctant to sell/trade it for sentimental reasons. I did trade it away and glad it is gone.
Yes, the military uses the 92FS (designated the M9) as the standard sidearm. I have no idea why other than politics (we wanted a base in Italy, they were awarded a contract). It's probably one of the last guns I would pick. I would pick Glock, CZ, Sig, Ruger, and a few others first. Oh well. I didn't like carrying one in Iraq. I would have preferred something else. Big, heavy, fouls easily, etc. Oh well again.
The M9 is so wildly popular with gun guys that Special Forces and Special Operations quickly dump the M9 in favor of Glocks, Sigs, HKs, etc. at their first opportunity.
Back to the original question, again, even after years of shooting lots of guns my 92FS was just not an accurate pistol. I'll never own another.