I think 90% of the hate for Taurus is deserved.
I have first hand experience with what I think is their 2 best pistols. PT92 and the PT1911.
My PT92 has only ever given me one hiccup. It was returned to Taurus and I had the pistol back within 2 weeks. Issues was the slide take-down pin broke. I have close to 6500 rounds thru the pistol since warranty work.
The PT1911 has run flawlessly with all variety of ammo, and mags. Including factory and high end Wilson Combat's, to even C-Product 1911 mags ( Copes had then cheap a long time ago ).
I didnt pay MSRP for either pistol, and have gotten a lot of life out of each unit. These clones/knock off's I think are the only real liable units from Taurus and can be great units.
If I could do it over again, I might go with Berreta only for all the surplus mags that are available. But only for that reason. I prefer the frame safety vs slide safety.
As far as the Taurus vs the PTAC AR you build, I think they might have gotten a fair better deal trade wise. But they got those cheap IMI mags that PSA has been blowing out.
I say buy a case of ammo and burn thru it.
PT1911
PT92