So, received the case..installed it.
Impressions:
Shipping: Next day from the UK to Vancouver, BC.
Installation: It's a little tricky. Included instruction sheet makes it clear the case has to be "slid" on and "pushed" down at the same time. It fits quite snugly and securely. Edit: Just make sure you actually follow the instruction sheet and install it phone face down...putting the plastic back on last...makes things much simpler.
Hand feel: Damn, it feels very, very nice. The slickness of the case (no sharp edges anywhere) and the nature of the materials makes my iPhone 4S feel "lighter" in my hand. It's quite an interesting feel. However, the case is not slippery. The machined grooves are just perfect for providing nice resting spots for the fingers. The hand feel is truly excellent..and because of the roundedness of the surfaces, it slides in and out of the pocket easily..unlike my former Albee Style 02 case.
Finish: Quite, quite excellent. It really is a high-end case and looks like you expect it to.
Comes with: A screwdriver and 2 extra screws.."star" style. They are nice and strong screws - not so small that the fitting for the driver will strip. Also, the case comes in a cute little tin. A bit overdone, the tin, but nice nonetheless. See gallery for pics of this.
Interference with signal: This is the best part.
Not a single bit! I did a field test as I rode the skytrain here in Vancouver..and I got great signal everywhere. Zero degradation, far as I can tell. Used speedtest at school on our wireless, and it's the same speed as on my Macbook pro.
Finally - a really sweet, high-end bumper that doesn't wreck the signal
And, like tuzzle says..it actually does look like a 'bat phone' which I equate with the case's sleek, minimal look. This case perfectly suits the look I want from my iPhone - minimal, futuristic and no logo visible anywhere. I only slightly regret not getting the silver top.
just a quick note about the pics. One of them makes the black backing look grey. It's not. The aluminum front and plastic back reflect the flash differently. They are both the same black in real life.
imgur gallery:
http://imgur.com/a/kzN4A#0