I have seen some but not handled them.
Tristar makes some seemingly reliable semis that vary from conventional to quite gaudy looks. So, it seems that they should be capable of making a decently reliable SxS, albeit rather gaudy looking. The Turks can stock a gun with some lovely wood. The Bristol line seems to have nicely polished and blued barrels, and are equipped with ejectors, giving them the edge over CZ's mainly matt finished, extractor equipped but largely reliable Huglu made guns. However, they seem to be all single selective trigger guns which in addition to being of poor taste in a SxS, can be troublesome and prone to doubling, though retailing at $1,000 -$1,200, that may well not be an issue for these guns. The "Silver" line, named perhaps for their somewhat "in the white" appearance receivers, seem to only be offered with pistol grip stocks; if not an actual abomination, then gauche at the very least. The non-"Silver" Bristols seem to only be offered with a single selective trigger, again in poor taste, but are stocked correctly in straight grip and splinter forend. Those I have seen however have the most heinous and outrageous chemical case colored receivers with exaggerated "tiger stripes". Quite gaudy.
So, on the plus side, a maker with a growing reputation offering a five year warranty and some nice features such as properly polished and blued barrels, nice wood, and ejectors at a price point that means the guns should be reliable for field use. On the other hand, poor taste. The Silver line finish is a bit flashy, one might say, making them look cheap rather than attractively priced. The single selective trigger is just not right on a SxS field gun and the pistol grip stock says "declasse" . Meanwhile, the nasty chemical case colored tiger stripes on the just-Bristol guns (reminiscent of H&R's nasty tiger stripe chemical finishes in their old "Shikari" guns, only worse) turns what might otherwise have been a quite exciting new entry level field gun, one with an edge over the CZ guns, into a gaudy statement, and a statement one hopes that very few would care to make.
A field gun wants a straight grip, splinter forend, and a slightly subdued receiver. Yes, your heavily engraved bright gold inlay Luciano Bosis cost $120,000, but it's still in rather poor taste frankly to show up for a shoot with it unless you are shooting with Saudi Princes, in which case it will be just fine. A single selective trigger and pistol grip have their places, on say, a live pigeon gun, but they are not the thing for a game or field gun at all.
So, I would wait. Wait for TriStar to offer a straight/splinter gun with double triggers and a somewhat more subdued reciever. When they do, there is the promise of a nicely appointed, reliable, low cost field gun.