I have the Triad, as well as TacOps, Eberlestock, and Tactical Tailor. I like the Triad best.
The TacOps is a really good bag, but like most, I found I left most of the features in the closet. I removed the shoulder straps, shooting mat, and the "nose cone" to save weight. I don't like the buckle tie down straps inside the bag because they constantly catch on my scope, bolt handle, etc when trying to get the rifle in/out of the bag, but I can't bring myself to cut them out. I don't need the suppressor pocket and nothing else fits in that pocket. Most of the time I don't snap the zipper cover, so I don't need that either.
I don't like the Eberlestock bag at all. All of the outside pouches are molle-attach, so you have a bunch of webbing that is unnecessary vs. a sewn-on pouch. I don't like the interior padded divider system. It protects the rifle well, but it's not easy to slip the rifle in/out especially if it's behind a truck seat. They're also not made in the US and you can tell a difference in the materials vs. the US bags and Cordura.
TT bag is nice (the OG) and well-made also, but there's a huge flaw in my opinion in that there is no padding on the spine of the bag, which is the very place you sit the bag down if you're carrying by the handles. There's also no padding between the rifle and the zipper. This isn't a big deal if you're using it like a drag bag, but for the money it needs more protection.
Triad is meat and potatoes. It's well-made, padded on all sides, and has 2 big and useful cargo pockets on the outside. The larger pocket carries my Swaro spotting scope and tabletop tripod no problem. It also has the best tie-down system on the inside of the bag and outside pouches that I've used. Webbing loops and velcro tie downs so you can position the tie downs anywhere that you like and you don't have to worry about snagging buckles and it's quick and easy to move them where you need them. It's also the lightest of the bags and I can squeeze it into a Storm IM3300 hard case if I need to (52" bag). I wish the bag were a little stiffer when unloaded, but I also wouldn't want it to be any heavier either. It also has the option for backpack straps (sold separately) but I've never bought or used them. This is my go-to bag for range trips and for truck hunting. If I go to a class or travel long distance for a match and need more protection, I'll just stick this in a Storm hard case with no foam for weather and impact protection.