Technically, I believe, there were no 9mm Warthogs. The 9mm version was listed in the Para catalog as the "Hawg 9" (Model WHX129R). The Hawg 9 is shown in the 2009 Para catalog, but it isn't shown in the 2014 catalog.
As to Para quality, IMHO (and in my experience) the quality was generally good or better. Like Colt, though, they had some bad years. In the early 2000s, Para had a quality control guy they had recruited from the aerospace industry. Under his tenure, quality was excellent, and I have owned multiple Para pistols from this period to prove it. The problem was that he was too good at his job. People got to know, like, and trust him, so Para pulled him off quality control and sent him out on the road to sell guns.
That might have been okay except that ,instead of replacing him, they put the production manager in charge of quality control. As production manager, he saw his job as being to maximize production so, anytime there was a conflict between production and quality, you can guess which won. This went on for about a year and a half, IIRC, until Para ultimately fired the production/QC manager and hired two new people to fill the two respective positions. After that, quality went back to being ... pretty darned good.