Just got my Gayle Bradley! Here are some comparison shots and initial impressions.
Size and Weight
It's smaller than I expected. It's still a fairly large knife, but I was expecting it to be bigger. I'm not complaining though, I think it's a good size. The handle is a good length, and offers a good grip, but it's a little on the thick side for my hands. If you like the thickness of the Spyderco Brad Southard Flipper, you'll like this knife, because their handles are very nearly the same thickness.
The knife has a big rear end. I wish it tapered down a bit more.
The blade stock is slightly thinner than I expected as well. It's slightly thinner than the blade on my Large Sebenza, and about 3/4 the width of the Southard's blade. I prefer the blade shape and blade thickness on this knife over that of the Southard Flipper. The tip of the blade is thinner than either the Southard or the Sebenza, but not quite as delicate feeling as the blade on the PM2. I haven't tried yet, but it looks like this knife will be excellent for wood carving, and fine detail work. You can choke up on the blade fairly well too, something you can't (safely) do on a Sebenza.
I don't know the exact weight, but the knife feels heavier in my pocket than my Sebenza, Southard, PM2, or even the Spyderco Military.
Construction
The Fit & Finish on the knife is excellent; it's nearly in the same league as the Spyderco Southard Flipper, at nearly about half the cost.
The Carbon Fiber is excellent. I could be wrong, but it looks and feels identical to the CF on my Sage 1. It's still not my favorite handle material; I prefer the robustness of Titanium, and the grip of G10, but it sure looks nice.
Other Thoughts
The knife deploys really well. It's not super smooth but it's good enough. Lockup is good, but not as solid as the Southard let alone the Sebenza.
Disengaging the lock sucks. I'm sorry, but it does. The liner is recessed, and I find it's hard to access. I've read a lot of comments on this, and it seems like quite a few people agree. Some have even modded their liners to make the liner lock easier to access. Disengaging the lock with my winter gloves on is even worse; it's just barely doable.
In the end, this probably won't replace my Sebenza as my favorite EDC knife, but it's still an excellent, well-made knife, and, at it's prize, probably one of the best values of all my Spyderco knives.