Funny you mention TGA, I have had nothing but great stuff in almost all of their gear. In fact, I have smoked a lot of Hazes and Sativas, but I have one Vortex phenol that is one of the best Sativas I have ever smoked. Extremely potent and the flavor? Out of this world! I have ran Querkle, Third Dimension, Vortex, Ripped Bubba, Cheesequake, Jack The Ripper, Appolo Bx,, Agent Orange, lol A LOT! I found keepers in almost every pack. Cheese Quake almost every dang seed was great. Only thing I did not care for was Ripped Bubba. I had a lemon phenol with straight bubba nugs, which was decent. A jack the ripper style buds with a bubba taste, but not as good as Bubba. And one that was just a mild bubba. They all produced insane resin though. And while all were good, none were that stand out you look for when running a pack. Agent Orange was monster yielding. However the real amazing orange tasting phenol was pretty weak buzz wise. The stronger phenol tasted pretty boring, so no winners there. Querkle has some great plants to be found as well. But his fast, potent, sativas are where he stands out in my opinion.
And I have to agree with the consistency part. There should be more uniform results with some of this stuff if they are all coming from one place. Now I do see a lot of people F up finicky strains, but I do see good growers have shit results from something say I have great results with. My buddy ran DNA's Cannalope Haze and it was one of the nicest things I had tasted. I ran it and I had plants that had almost no resin and others that were decent but nothing as fast or as nice as his.