Blade: The Blade is a hollow-ground, clip point blade in 8Cr13MoV steel. This particular steel is becoming a known quantity these days, so I won't really go much in to it - at the HRC rated, I would likely put the edge performance somewhere between AUS-6M and AUS-8 - good, but not super fantastic. While this particular steel can be hardened further (Spyderco hardens the Byrd knives in to the range of 58-59), I'm quite happy with it where it is.
The blade is well shaped, 3/4 start hollow grind, nice belly for slicing, flat body, and a nice upsweep to a sharp tip. There's an unsharpened swedge that sweeps down from the top of the blade terminating at a very nice sharp tip. The blade is reasonably thick at 2mm, though I think the swedge has left the tip a little bit on the fragile side - I guess only time will tell if that's the case or not. It both push cuts and draw cuts well. The blade lacks jimping top or bottom, but for what this knife is designed to do (it's an EDC blade) it's perfectly reasonable. The grind is symmetrical and polished to a satin finish.
The thumbstud I'll give a little bit of a hit to, it's a bit of a skin-ripper in use. However, it provides excellent traction, and is removable and is switchable for left/right open or replacement via a hex screw in the back.
Handle: The handle is very... boxy? Surprisingly enough, the handle is a full SS lined, with actual G-10 scales on it. The construction is of the pin-pillar design with no backspacer, and the handle can be completely disassembled using using hex keys if cleaning is necessary.
It's quite comfortable in use despite the odd shape, and for smaller hands (like mine!) it fits quite nicely. The handle flares out ever so slightly at the back, and has a palm ramp - these two factors combined create a very nice, solid feeling in the hand. There's also no handle flex.
Even without significant finger sculpting the G-10 scales provide very nice grip on the handle.
Clip: Satin-finish stainless steel. It's quite strong and provides decent purchase, but I'm not a big fan of the design - the way it's attached it rides kind of high in the pocket. It is switchable tip-up/tip-down carry, but only on the right hand side (sorry lefties). I would prefer a bead-blasted or matte finish rather than the satin fininsh, but nonetheless I think the clip will fulfill it's function very well.
Fit and Finish: Excellent. Really, really good. The handles are radiused for comfort, there's no creaking or flex, no loose fibres or excessive dirt anywhere on the knife. The blade is perfectly centered in the handle when folded, and locks up absolutely solid when open with zero blade play either horizontally or vertically. The blade grind is symmetrical and generally well done (though like in Buck knives, the vertical grind patterns aren't completely polished out).