I have never had an opportunity to lay hands on a Baretta. But I helped my buddy pump rounds through a SS Taurus 92 which was built shortly after Taurus purchased the Brazilian factory from Baretta.
The Taurus 92 shot well with everything we threw at it. The only malfunction I ever saw was when my 12 year old daughter limp wristed it.
And based on performance of a Witness in 38 Super, I could be happy with either model in 9 mm.