The smoothness of the Beretta's action was one of the major selling points of it when my dad and I were looking for our first 9mm. We looked at Sig, Glock, CZ, H&K, Walther, you name it, we looked at it. The 92FS had a few things going for it.
Beretta 92FS- SOLID as a rock, Smooth as butter, fits very well in hand, smooth *but long* trigger, predictable trigger break in SA, wonderful 3 dot sights, just felt awesome.
Here are some points I liked on the other pistols...
H&K USP 9mm- Well, it has a great reputation, But on first "hold/inspection" nothing special about it, but I like the sights.
SIG 226- Felt solid, loved the sights.
CZ 75- Pretty solid, slimmer design, nice trigger.
Glock 17/19- Ummm, its, well, a glock.
Walther P99- Fits like a glove, cool decocker.
Overall, the Beretta kicked everyone elses ass. The second one I would have taken was the USP. Then the Sig, then the Walther, CZ, then Glock.
Just my opinion about the Beretta. I made a good choice too. About 6000 rounds through it, no failures or stoppages of any kind whatsoever. Nothing but smiles, and no regrets about that purchase at all.
I recommend a 92 to anyone, so long as theyre not using it for CCW