I too had reservations about Taurus. I have repaired several over the years. And yeah, getting parts for them was getting to be a major PITA. Thank you , Mark First!
The US CEO Mark Kresser seems to turning Taurus into a good company. He appears to be going thru every aspect of taking care of business, and fixing what used to be a pretty poor excuse of a firearms manufacturer. So far, I have been impressed insomuch as Taurus seems to be cleaning up their act. And I have not been a fanboy for Taurus in the past, either.
On to the Shield Vs G2, I have owned both, more than once. My biggest problem w/ the Shield is capacity. And, I realize to some that is not a problem. I am an LEO and after considering some of the Crazies shooting episodes these days, I decided I needed something for off duty work w/ more rds available. I decided to try the G2, as I liked how it felt and and the capacity. I looked thru anything I could find on the pistol, and to my surprise, no one seemed to be having any problems with them.
I bought the stainless version from Academy, and promptly sold the laser site that came with it. That put me into the pistol at roughly $350. Everything on the pistol seems to be made well enough, castings on frame trunnions are a little rough but clean enough where need be. And someone in the Engineering Dept. has been paying attention, too. Extractor, and striker assembles can be removed from the slide with almost no tools, A la Glock. Nice. And cleaning issues with the frame and slide trunnions can be addressed w/o dis-assembly, as the frame lock work is similiar to the M&P/XD series of pistols, save for the "Double Strike" capability of the trigger. Frame rail, single action style trigger, like an M&P, and, as someone mentioned, a thumb safety that can be used, if you prefer. Sites are plastic, but seem to be well made and the rear site is adjustable. And I believe the sights are the same as the 24/7 series(I may be wrong.) and aftermarket stuff is starting to become available. Little pistol is about the same size as a Shield, albeit a little thicker, and fits my hand well w/o using a magazine spacer. And, as an aside, it just so happens that the G2 fits a Blackhawk SERPA model perfectly. H&K 2000 holster model. Oh, and believe it or not, magazines are available, too. The G2 eats every round I have fed it , so far, w/o a prob. All in all, I think Taurus has a winner here. It's what I now carry off duty. Time will tell. Of course. YMMV.
Ofc.JL