Few things Harris wont do that were deal breakers for me:
45 degree legs forward (if Im shooting bench, this is the most common position for me)
Legs will only deploy in one direction. From what I remember I had to have it mounted so that the legs folded backwards, to deploy forward. If I wanted to mount it the other way around, when I loaded down on the bipod, I risked folding the legs in on themselves back into the storage position. Might have been the other way around, but either way it was stupid considering how many other bipods dont have this issue.
Tension adjustment knob sucked. No other way to describe it.
All of the above moved me into an Atlas PSR. I love that one.
I did recently buy another rifle that I think would benefit from a beefier setup over, so this week I added an Accu-tac FC4 G2 as well. Its got a super wide stance and the leg deployment method (pull down and move) is pretty simple. I do still think Atlas has the better rubber feet overall but this bipod is built like a tank.
Accu-tac:
overall depends on the gear and style of shooting you do. I want pan AND cant on mine, so I had specific models I preferred from both B&T and Accu-tac, I dont think you can go wrong with either, depending on the style of shooting you do.
the atlas quick detach bipods use the ADM mounts, and they are awesome. Very well built. However, the Accu-tac's quick detach engages 3 rail slots on the picatinny, you really cant be more "overbuilt" than that, and I love that idea.