Im fine with the Beretta's slide mounted safety. To me, it would seem more logical to turn the "safety off", on a firearm with a slide mounted safety, by pushing the lever up. If you carry a Beretta with the safety on and had to draw your weapon. It would seem to go smoother to flip the safety up as you adjust your grip and draw down on the target.
I have small hands(medium sized gloves are just a bit too big and small are just a bit too snug), and i have to adjust my hand more, to flip the lever down(turn the safety on). Meaning, i would have to change my grip and it would take longer for my pistol to aquire its target, if the the "safety off" position was down and the "safety on" was up.
And the whole Taurus vs. Beretta has been discussed more. I paid ~$410 for my 92F, slight used which is about the same for a NIB Taurus. The fit and finish are on two very different levels. And yes, my buddy has had 2 Taurus 92's and i have shot them both quite a bit.