IMO, Swart, Carr, and Tone King set the absolute benchmark for style - love their aesthetics!
Regarding the lights, they are the same style I've been using on my other preamps. Power light is amber, clip light will be red as you'd expect. What's cool (to me anyway) is that they two are totally different types of lamp but have the same packing which is nice from an aesthetic standpoint.
I was just happy to get everything to fit (even before I decided to add the fifth band of EQ!). The knobs are pretty easy to turn because their shape leaves plenty of space between the center section that you actually manipulate, which is good for chubby digits. The pots are big, and there is an internal frame the front panel mounts to that the jacks and switches have to clear, so there is no space left over. It's been a challenge doing a compact hand-wired amp from a packaging perspective, but it turned out very well from a DFMA (design for manufacturing and assembly) perspective which is good since I'm the one that has to put them together!