Arman-
I was an asst armorer in Germany in 1992 when we switched out our 1911s for M-9s. Not only did I see all of the problems you describe in NEW Berettas I PERSONALLY unpacked from cosmoline, they were also susceptible to problems like say, over-curious E-7s taking the grips off, playing with the springs, and putting them in backwards.
As for accuracy, I never put one in a rest, the only shooting I ever did with them was flawless knocking over man-size targets. If I ever missed one, I don't recall. The M-9 is as good as any other 9mm I've fired for having a great SA trigger pull and bouncing right back to target. But the fact that it's very large for the round, the other problems I mentioned, and the fact that there are just too many other better pistils out there mea that I don't ever see myself using one again by choice.