Mine arrived aver the weekend. Overall impression is pretty positive, I definitely like the thickness, they feel very substantial next to the similarly profiled offerings from SP. However, I do have some (hopefully constructive) criticisms about these caps:
* Firstly about the laser-etched legends, I don't have much positive about them, they are a but uneven, and the texture is like charred plastic (that's because it is lol), in general a bit unpleasant to type on. They don't look bad from a distance, but up close they are a bit disapointing, it's definitely not somthing you would want on your alpha keys. On less often used keys, I guess it could be OK. I don't think there's anything you can do about this, as it's just inherent to laser-etching, but perhaps there's ways to tweak the process to produce more even and less rough-feeling legends.
* Secondly, I think the surface finish on these caps is a slight step below SP caps. They have a noticably rougher texture, and they are uneven (like towards edges, you can see the texture sorta 'stretches out', you can see the grains get further apart. I don't know if this is a quirk with Devlin's production line or if there's some tweaks they can do to their tooling to improve surface finish.
* Lastly, the caps have noticable rough edges where the mould lines are, and if you run your fingertip across them, you can detect the line quite clearly (there's a bit of sharp burrs around this area). This is a minor point, nothing a gentle sanding can't fix.
Overall though, it's pretty positive, especially the double-shot cap. Very sharp legend, no noticable gaps between the legends and the surface of the cap itself. It's nice to see something very different from SP's current offerings, and I look forward to seeing some group buys with this in the future!